It’s possible that I shall make an ass of myself. But in that case one can always get out of it with a little dialectic. I have, of course, so worded my proposition as to be right either way (K.Marx, Letter to F.Engels on the Indian Mutiny)
Sunday, May 03, 2020
THE HERMETIC CODE IN DNA
THE SACRED PRINCIPLES IN THE ORDERING OF THE UNIVERSE
MICHAEL HAYES
FORWARD COLIN WILSON
https://archive.org/details/thehermeticcodeindna/mode/2up Contents
Foreword by Colin Wilson
Acknowledgments
A Note on Measurements
Introduction
1 The Sacred Constant: The “Jewel in the Crown”
2 A Different Way of Seeing
3 Music over Matter
4 The Electron and the Holy Ghost
5 Further Light
6 Live Music
7 Extraterrestrial DNA
8 Interstellar Genes and the Galactic Double Helix
9 The Hermetic Universe of Ancient Times
10 The Hierarchy of Dimensions
11 The Fate of the Universe
12 Inner Octaves
13 The Holographic Principle
14 Quantum Psychology: The “Nonlocal” Brain
15 QP2: The Universal Paradigm
16 The Shapeshifters
17 “Al-Chem”—the Egyptian Way
Notes
Bibliography
Geologists Work To Piece Together Earth’s Missing Memories
A team of geologists led by the University of Colorado Boulder is digging into what may be Earth's most famous case of geologic amnesia. Researchers have spotted that phenomenon, called the "Great Unconformity," at sites around North America, including in the Grand Canyon and at the base of Pikes Peak in Colorado.
A hiker walks along a road near Manitou Springs, Colorado, where an exposed outcrop shows a feature known as the "Great Unconformity" [Credit: Rebecca Flowers]
There lie sites of missing time, where relatively young rocks dating back about 550 million years sit right on top of much more ancient stone—in some cases more than 3 billion years old. In other words, a huge chunk of geologic history has vanished from in between.
"Researchers have long seen this as a fundamental boundary in geologic history," said Rebecca Flowers, an associate professor in the Department of Geological Sciences.
For a study published in the Proceedings of the National Academy of Sciences, she and her colleagues drew on a technique known as "thermochronology" to take a fresh look at that fundamental boundary. They found that the Great Unconformity might not be the result of a single, catastrophic event in the planet's past like many scientists thought. Instead, a series of smaller calamities may have triggered many different unconformities around the world.
The results could help scientists better understand the flourishing of complex life that occurred not long after that tumult settled down, about 540 million years ago in an era called the "Cambrian Explosion." "There is a lot of the geological record that is missing," Flowers said. "But just because it's missing doesn't mean that this history is simple."
Pike's Peak
To study that less-than-simple history, Flowers and her colleagues turned to Pikes Peak. In a granite outcrop near the mountain town of Manitou Springs, geologists can find one of the clearest cases of the Great Unconformity.
Follow the strata down, and you will see young rocks—less than 510 million years old—and older "basement" rocks—dating back about 1 billion years. But you won't find anything in between.
Geologists know that something must have happened in the past to erase all that history, Flowers said. What that was and when exactly it happened, however, are still a mystery. "Only recently have we had the ability to reach far enough back in time to start filling in that gap," she said.
Rebecca Flowers stands near an outcrop on Pikes Peak in Colorado
[Credit: Rebecca Flowers]
Rocks, Flowers said, carry a kind of memory. By probing the particular atoms that have been locked up inside geologic samples, savvy scientists can create a heat-based history of those rocks—essentially, how hot or cold the sample was at various points in its lifetime.
Using that method, the researchers discovered that the Pikes Peak basement rocks were brought to the surface of the planet about 700 million years ago. For Flowers' team, that finding was key.
When all that rock rose to the surface, she explained, it would have suddenly been at the mercy of wind, snow and other extremes. And those elements could have led to erosion—a lot of erosion—essentially wiping the geologic history of the region clean. Imagine shaking an Etch-a-Sketch but on a monumental level.
"Earth is an active place," Flowers said. "There used to be a lot more rocks sitting on top of Mount Everest, for example. But they've been eroded away and transported elsewhere by streams."
Blame Rodinia
But what lifted those rocks up in the first place? Flowers and her colleagues think it has something to do with Rodinia. That's the name of a massive supercontinent—think Pangea, only much older—that formed at Earth's surface roughly 1 billion years ago.
"At the edges of Rodinia, where you have continents colliding, you'd see these mountain belts like the Himalayas begin to form," Flowers said. "That could have caused large amounts of erosion."
The researchers also realized something else: The Great Unconformity might not have been so great in the first place. As Rodinia crashed together then pulled apart over hundreds of millions of years, all that geologic activity may have caused many separate cases of memory loss around the world—not just one.
"We're left with a feature that looks similar across the world when, in fact, there may have been multiple great unconformities, plural," Flowers said. "We may need to change our language if we want to think about the Great Unconformity as being more complicated, forming at different times in different locations and for different reasons."
It's something to ponder the next time you go for a hike on Pikes Peak.
Author: Daniel Strain | Source: University of Colorado at Boulder [April 27, 2020]
A team of geologists led by the University of Colorado Boulder is digging into what may be Earth's most famous case of geologic amnesia. Researchers have spotted that phenomenon, called the "Great Unconformity," at sites around North America, including in the Grand Canyon and at the base of Pikes Peak in Colorado.
A hiker walks along a road near Manitou Springs, Colorado, where an exposed outcrop shows a feature known as the "Great Unconformity" [Credit: Rebecca Flowers]
There lie sites of missing time, where relatively young rocks dating back about 550 million years sit right on top of much more ancient stone—in some cases more than 3 billion years old. In other words, a huge chunk of geologic history has vanished from in between.
"Researchers have long seen this as a fundamental boundary in geologic history," said Rebecca Flowers, an associate professor in the Department of Geological Sciences.
For a study published in the Proceedings of the National Academy of Sciences, she and her colleagues drew on a technique known as "thermochronology" to take a fresh look at that fundamental boundary. They found that the Great Unconformity might not be the result of a single, catastrophic event in the planet's past like many scientists thought. Instead, a series of smaller calamities may have triggered many different unconformities around the world.
The results could help scientists better understand the flourishing of complex life that occurred not long after that tumult settled down, about 540 million years ago in an era called the "Cambrian Explosion." "There is a lot of the geological record that is missing," Flowers said. "But just because it's missing doesn't mean that this history is simple."
Pike's Peak
To study that less-than-simple history, Flowers and her colleagues turned to Pikes Peak. In a granite outcrop near the mountain town of Manitou Springs, geologists can find one of the clearest cases of the Great Unconformity.
Follow the strata down, and you will see young rocks—less than 510 million years old—and older "basement" rocks—dating back about 1 billion years. But you won't find anything in between.
Geologists know that something must have happened in the past to erase all that history, Flowers said. What that was and when exactly it happened, however, are still a mystery. "Only recently have we had the ability to reach far enough back in time to start filling in that gap," she said.
Rebecca Flowers stands near an outcrop on Pikes Peak in Colorado
[Credit: Rebecca Flowers]
Rocks, Flowers said, carry a kind of memory. By probing the particular atoms that have been locked up inside geologic samples, savvy scientists can create a heat-based history of those rocks—essentially, how hot or cold the sample was at various points in its lifetime.
Using that method, the researchers discovered that the Pikes Peak basement rocks were brought to the surface of the planet about 700 million years ago. For Flowers' team, that finding was key.
When all that rock rose to the surface, she explained, it would have suddenly been at the mercy of wind, snow and other extremes. And those elements could have led to erosion—a lot of erosion—essentially wiping the geologic history of the region clean. Imagine shaking an Etch-a-Sketch but on a monumental level.
"Earth is an active place," Flowers said. "There used to be a lot more rocks sitting on top of Mount Everest, for example. But they've been eroded away and transported elsewhere by streams."
Blame Rodinia
But what lifted those rocks up in the first place? Flowers and her colleagues think it has something to do with Rodinia. That's the name of a massive supercontinent—think Pangea, only much older—that formed at Earth's surface roughly 1 billion years ago.
"At the edges of Rodinia, where you have continents colliding, you'd see these mountain belts like the Himalayas begin to form," Flowers said. "That could have caused large amounts of erosion."
The researchers also realized something else: The Great Unconformity might not have been so great in the first place. As Rodinia crashed together then pulled apart over hundreds of millions of years, all that geologic activity may have caused many separate cases of memory loss around the world—not just one.
"We're left with a feature that looks similar across the world when, in fact, there may have been multiple great unconformities, plural," Flowers said. "We may need to change our language if we want to think about the Great Unconformity as being more complicated, forming at different times in different locations and for different reasons."
It's something to ponder the next time you go for a hike on Pikes Peak.
Author: Daniel Strain | Source: University of Colorado at Boulder [April 27, 2020]
New Findings Suggest Laws Of Nature Not As Constant As Previously Thought
Those looking forward to a day when science's Grand Unifying Theory of Everything could be worn on a t-shirt may have to wait a little longer as astrophysicists continue to find hints that one of the cosmological constants is not so constant after all.
Scientists examining the light from one of the furthermost quasars in the universe were astonished to find fluctuations in the electromagnetic force [Credit: Shutterstock]
In a paper published in prestigious journal Science Advances, scientists from UNSW Sydney reported that four new measurements of light emitted from a quasar 13 billion light years away reaffirm past studies that have measured tiny variations in the fine structure constant.
UNSW Science's Professor John Webb says the fine structure constant is a measure of electromagnetism - one of the four fundamental forces in nature (the others are gravity, weak nuclear force and strong nuclear force).
"The fine structure constant is the quantity that physicists use as a measure of the strength of the electromagnetic force," Professor Webb says. "It's a dimensionless number and it involves the speed of light, something called Planck's constant and the electron charge, and it's a ratio of those things. And it's the number that physicists use to measure the strength of the electromagnetic force."
The electromagnetic force keeps electrons whizzing around a nucleus in every atom of the universe - without it, all matter would fly apart. Up until recently, it was believed to be an unchanging force throughout time and space. But over the last two decades, Professor Webb has noticed anomalies in the fine structure constant whereby electromagnetic force measured in one particular direction of the universe seems ever so slightly different.
"We found a hint that that number of the fine structure constant was different in certain regions of the universe. Not just as a function of time, but actually also in direction in the universe, which is really quite odd if it's correct...but that's what we found."
Looking for Clues
Ever the sceptic, when Professor Webb first came across these early signs of slightly weaker and stronger measurements of the electromagnetic force, he thought it could be a fault of the equipment, or of his calculations or some other error that had led to the unusual readings. It was while looking at some of the most distant quasars - massive celestial bodies emitting exceptionally high energy - at the edges of the universe that these anomalies were first observed using the world's most powerful telescopes.
"The most distant quasars that we know of are about 12 to 13 billion light years from us," Professor Webb says. "So if you can study the light in detail from distant quasars, you're studying the properties of the universe as it was when it was in its infancy, only a billion years old. The universe then was very, very different. No galaxies existed, the early stars had formed but there was certainly not the same population of stars that we see today. And there were no planets."
He says that in the current study, the team looked at one such quasar that enabled them to probe back to when the universe was only a billion years old which had never been done before. The team made four measurements of the fine constant along the one line of sight to this quasar. Individually, the four measurements didn't provide any conclusive answer as to whether or not there were perceptible changes in the electromagnetic force. However, when combined with lots of other measurements between us and distant quasars made by other scientists and unrelated to this study, the differences in the fine structure constant became evident.
A weird Universe
"And it seems to be supporting this idea that there could be a directionality in the universe, which is very weird indeed," Professor Webb says. "So the universe may not be isotropic in its laws of physics - one that is the same, statistically, in all directions. But in fact, there could be some direction or preferred direction in the universe where the laws of physics change, but not in the perpendicular direction. In other words, the universe in some sense, has a dipole structure to it.
"In one particular direction, we can look back 12 billion light years and measure electromagnetism when the universe was very young. Putting all the data together, electromagnetism seems to gradually increase the further we look, while towards the opposite direction, it gradually decreases. In other directions in the cosmos, the fine structure constant remains just that - constant. These new very distant measurements have pushed our observations further than has ever been reached before."
In other words, in what was thought to be an arbitrarily random spread of galaxies, quasars, black holes, stars, gas clouds and planets - with life flourishing in at least one tiny niche of it - the universe suddenly appears to have the equivalent of a north and a south. Professor Webb is still open to the idea that somehow these measurements made at different stages using different technologies and from different locations on Earth are actually a massive coincidence.
"This is something that is taken very seriously and is regarded, quite correctly with scepticism, even by me, even though I did the first work on it with my students. But it's something you've got to test because it's possible we do live in a weird universe."
But adding to the side of the argument that says these findings are more than just coincidence, a team in the US working completely independently and unknown to Professor Webb's, made observations about X-rays that seemed to align with the idea that the universe has some sort of directionality.
"I didn't know anything about this paper until it appeared in the literature," he says. "And they're not testing the laws of physics, they're testing the properties, the X-ray properties of galaxies and clusters of galaxies and cosmological distances from Earth. They also found that the properties of the universe in this sense are not isotropic and there's a preferred direction. And lo and behold, their direction coincides with ours."
Life, the Universe and Everything
While still wanting to see more rigorous testing of ideas that electromagnetism may fluctuate in certain areas of the universe to give it a form of directionality, Professor Webb says if these findings continue to be confirmed, they may help explain why our universe is the way it is, and why there is life in it at all.
"For a long time, it has been thought that the laws of nature appear perfectly tuned to set the conditions for life to flourish. The strength of the electromagnetic force is one of those quantities. If it were only a few per cent different to the value we measure on Earth, the chemical evolution of the universe would be completely different and life may never have got going. It raises a tantalising question: does this 'Goldilocks' situation, where fundamental physical quantities like the fine structure constant are 'just right' to favour our existence, apply throughout the entire universe?"
VELIKOVSKY WAS RIGHT
Author: Lachlan Gilbert | Source: University of New South Wales [April 27, 2020]
Theory of Electromagnetism and Gravity Modeling Earth as a Rotating Solenoid Coil
Greg Poole
Electrical Power Engineer
Pilot Hill, CA USA 1
https://archive.org/details/TheoryOfElectromagnetismAndGravityJHEPGC/mode/2up
Abstract
Presented in this manuscript are conventional electrical engineering tools to model the earth as a rotating electrical machine. Calculations using known parameters of the earth and measured field data has resulted in new understanding of the earths electrical system and gyroscopic rotation. The material makeup of the inner earth is better understood based on derived permeability and permittivity constants. The planet has been modeled as simple coils and then as a parallel impedance circuit which has led to fundamental insight into planetary speed control and RLC combination for Schumann Resonance of 7.83Hz. Torque and Voltage Constants and the inverse Speed Constant are calculated using three methods and all compare favorably with Newtons Gravitational Constant. A helical resonator is referenced and Schumann’s Resonant ideal frequency calculated and compared with others idealism. A new theory of gravity based on particle velocity selector at the poles is postulated. Two equations are presented as the needed links between Faraday’s electromagnetism and Newtonian physics. Acceleration and Speed Control of earth is explained as a centripetal governor. A new equation for planetary attraction and the attraction of atomic matter is theorized. Rotation of the earths electrical coil is explained in terms of the Richardson effect. Electric power transfer from the sun to the planets is proposed via Flux Transfer Events. The impact of this evolving science of electromagnetic modeling of planets will be magnified as the theory is proven; and found to be useful for future generations of engineers and scientists who seek to discover our world and other planets.
Those looking forward to a day when science's Grand Unifying Theory of Everything could be worn on a t-shirt may have to wait a little longer as astrophysicists continue to find hints that one of the cosmological constants is not so constant after all.
Scientists examining the light from one of the furthermost quasars in the universe were astonished to find fluctuations in the electromagnetic force [Credit: Shutterstock]
In a paper published in prestigious journal Science Advances, scientists from UNSW Sydney reported that four new measurements of light emitted from a quasar 13 billion light years away reaffirm past studies that have measured tiny variations in the fine structure constant.
UNSW Science's Professor John Webb says the fine structure constant is a measure of electromagnetism - one of the four fundamental forces in nature (the others are gravity, weak nuclear force and strong nuclear force).
"The fine structure constant is the quantity that physicists use as a measure of the strength of the electromagnetic force," Professor Webb says. "It's a dimensionless number and it involves the speed of light, something called Planck's constant and the electron charge, and it's a ratio of those things. And it's the number that physicists use to measure the strength of the electromagnetic force."
The electromagnetic force keeps electrons whizzing around a nucleus in every atom of the universe - without it, all matter would fly apart. Up until recently, it was believed to be an unchanging force throughout time and space. But over the last two decades, Professor Webb has noticed anomalies in the fine structure constant whereby electromagnetic force measured in one particular direction of the universe seems ever so slightly different.
"We found a hint that that number of the fine structure constant was different in certain regions of the universe. Not just as a function of time, but actually also in direction in the universe, which is really quite odd if it's correct...but that's what we found."
Looking for Clues
Ever the sceptic, when Professor Webb first came across these early signs of slightly weaker and stronger measurements of the electromagnetic force, he thought it could be a fault of the equipment, or of his calculations or some other error that had led to the unusual readings. It was while looking at some of the most distant quasars - massive celestial bodies emitting exceptionally high energy - at the edges of the universe that these anomalies were first observed using the world's most powerful telescopes.
"The most distant quasars that we know of are about 12 to 13 billion light years from us," Professor Webb says. "So if you can study the light in detail from distant quasars, you're studying the properties of the universe as it was when it was in its infancy, only a billion years old. The universe then was very, very different. No galaxies existed, the early stars had formed but there was certainly not the same population of stars that we see today. And there were no planets."
He says that in the current study, the team looked at one such quasar that enabled them to probe back to when the universe was only a billion years old which had never been done before. The team made four measurements of the fine constant along the one line of sight to this quasar. Individually, the four measurements didn't provide any conclusive answer as to whether or not there were perceptible changes in the electromagnetic force. However, when combined with lots of other measurements between us and distant quasars made by other scientists and unrelated to this study, the differences in the fine structure constant became evident.
A weird Universe
"And it seems to be supporting this idea that there could be a directionality in the universe, which is very weird indeed," Professor Webb says. "So the universe may not be isotropic in its laws of physics - one that is the same, statistically, in all directions. But in fact, there could be some direction or preferred direction in the universe where the laws of physics change, but not in the perpendicular direction. In other words, the universe in some sense, has a dipole structure to it.
"In one particular direction, we can look back 12 billion light years and measure electromagnetism when the universe was very young. Putting all the data together, electromagnetism seems to gradually increase the further we look, while towards the opposite direction, it gradually decreases. In other directions in the cosmos, the fine structure constant remains just that - constant. These new very distant measurements have pushed our observations further than has ever been reached before."
In other words, in what was thought to be an arbitrarily random spread of galaxies, quasars, black holes, stars, gas clouds and planets - with life flourishing in at least one tiny niche of it - the universe suddenly appears to have the equivalent of a north and a south. Professor Webb is still open to the idea that somehow these measurements made at different stages using different technologies and from different locations on Earth are actually a massive coincidence.
"This is something that is taken very seriously and is regarded, quite correctly with scepticism, even by me, even though I did the first work on it with my students. But it's something you've got to test because it's possible we do live in a weird universe."
But adding to the side of the argument that says these findings are more than just coincidence, a team in the US working completely independently and unknown to Professor Webb's, made observations about X-rays that seemed to align with the idea that the universe has some sort of directionality.
"I didn't know anything about this paper until it appeared in the literature," he says. "And they're not testing the laws of physics, they're testing the properties, the X-ray properties of galaxies and clusters of galaxies and cosmological distances from Earth. They also found that the properties of the universe in this sense are not isotropic and there's a preferred direction. And lo and behold, their direction coincides with ours."
Life, the Universe and Everything
While still wanting to see more rigorous testing of ideas that electromagnetism may fluctuate in certain areas of the universe to give it a form of directionality, Professor Webb says if these findings continue to be confirmed, they may help explain why our universe is the way it is, and why there is life in it at all.
"For a long time, it has been thought that the laws of nature appear perfectly tuned to set the conditions for life to flourish. The strength of the electromagnetic force is one of those quantities. If it were only a few per cent different to the value we measure on Earth, the chemical evolution of the universe would be completely different and life may never have got going. It raises a tantalising question: does this 'Goldilocks' situation, where fundamental physical quantities like the fine structure constant are 'just right' to favour our existence, apply throughout the entire universe?"
VELIKOVSKY WAS RIGHT
If there is a directionality in the universe, Professor Webb argues, and if electromagnetism is shown to be very slightly different in certain regions of the cosmos, the most fundamental concepts underpinning much of modern physics will need revision.Professor Webb's team believe this is the first step towards a far larger study exploring many directions in the universe, using data coming from new instruments on the world's largest telescopes. New technologies are now emerging to provide higher quality data, and new artificial intelligence analysis methods will help to automate measurements and carry them out more rapidly and with greater precision.
"Our standard model of cosmology is based on an isotropic universe, one that is the same, statistically, in all directions," he says. "That standard model itself is built upon Einstein's theory of gravity, which itself explicitly assumes constancy of the laws of Nature. If such fundamental principles turn out to be only good approximations, the doors are open to some very exciting, new ideas in physics."
Author: Lachlan Gilbert | Source: University of New South Wales [April 27, 2020]
Theory of Electromagnetism and Gravity Modeling Earth as a Rotating Solenoid Coil
Greg Poole
Electrical Power Engineer
Pilot Hill, CA USA 1
https://archive.org/details/TheoryOfElectromagnetismAndGravityJHEPGC/mode/2up
Abstract
Presented in this manuscript are conventional electrical engineering tools to model the earth as a rotating electrical machine. Calculations using known parameters of the earth and measured field data has resulted in new understanding of the earths electrical system and gyroscopic rotation. The material makeup of the inner earth is better understood based on derived permeability and permittivity constants. The planet has been modeled as simple coils and then as a parallel impedance circuit which has led to fundamental insight into planetary speed control and RLC combination for Schumann Resonance of 7.83Hz. Torque and Voltage Constants and the inverse Speed Constant are calculated using three methods and all compare favorably with Newtons Gravitational Constant. A helical resonator is referenced and Schumann’s Resonant ideal frequency calculated and compared with others idealism. A new theory of gravity based on particle velocity selector at the poles is postulated. Two equations are presented as the needed links between Faraday’s electromagnetism and Newtonian physics. Acceleration and Speed Control of earth is explained as a centripetal governor. A new equation for planetary attraction and the attraction of atomic matter is theorized. Rotation of the earths electrical coil is explained in terms of the Richardson effect. Electric power transfer from the sun to the planets is proposed via Flux Transfer Events. The impact of this evolving science of electromagnetic modeling of planets will be magnified as the theory is proven; and found to be useful for future generations of engineers and scientists who seek to discover our world and other planets.
Disappearance Of Animal Species Takes Mental, Cultural, SPIRITUAL And Material Toll On Humans
For thousands of years, indigenous hunting societies have subsisted on specific animals for their survival. How have these hunter-gatherers been affected when these animals migrate or go extinct?
Hunter-gatherer societies have had profoundly deep relationships with the animals they hunted, TAU researchers say. In this photo Bushman hunters in the Kalahari desert
[Credit: GettyImages]
For thousands of years, indigenous hunting societies have subsisted on specific animals for their survival. How have these hunter-gatherers been affected when these animals migrate or go extinct?
Hunter-gatherer societies have had profoundly deep relationships with the animals they hunted, TAU researchers say. In this photo Bushman hunters in the Kalahari desert
[Credit: GettyImages]
To answer this and other questions, Tel Aviv University (TAU) researchers conducted a broad survey of several hunter-gatherer societies across history in a retrospective study published in Time and Mind. The study, led by Eyal Halfon and Prof. Ran Barkai of TAU's Department of Archeology and Ancient Near Eastern Cultures, sheds new light on the deep, multidimensional connection between humans and animals.
"There has been much discussion of the impact of people on the disappearance of animal species, mostly through hunting," explains Halfon. "But we flipped the issue to discover how the disappearance of animals -- either through extinction or migration -- has affected people."
The research reveals that these societies expressed a deep emotional and psychological connection with the animal species they hunted, especially after their disappearance. The study will help anthropologists and others understand the profound environmental changes taking place in our own lifetimes.
Halfon and Prof. Barkai conducted a survey of different historical periods and geographical locations, focusing on hunter-gatherer societies that hunted animals as the basis for their subsistence. They also investigated situations in which these animals became extinct or moved to more hospitable regions as a result of climate change.
"Many hunter-gatherer populations were based on one type of animal that provided many necessities such as food, clothing, tools and fuel," Prof. Barkai says. "For example, until 400,000 years ago prehistoric humans in Israel hunted elephants. Up to 40,000 years ago, residents of Northern Siberia hunted the woolly mammoth. When these animals disappeared from those areas, this had major ramifications for humans, who needed to respond and adapt to a new situation. Some had to completely change their way of life to survive."
"There has been much discussion of the impact of people on the disappearance of animal species, mostly through hunting," explains Halfon. "But we flipped the issue to discover how the disappearance of animals -- either through extinction or migration -- has affected people."
The research reveals that these societies expressed a deep emotional and psychological connection with the animal species they hunted, especially after their disappearance. The study will help anthropologists and others understand the profound environmental changes taking place in our own lifetimes.
Halfon and Prof. Barkai conducted a survey of different historical periods and geographical locations, focusing on hunter-gatherer societies that hunted animals as the basis for their subsistence. They also investigated situations in which these animals became extinct or moved to more hospitable regions as a result of climate change.
The new research explores hunter-gatherer societies throughout human history, from those dating back hundreds of thousands of years to modern-day societies that still function much the way prehistoric groups did. Ten case studies illustrate the deep connection -- existential, physical, spiritual and emotional -- between humans and animals they hunted.
"We found that humans reacted to the loss of the animal they hunted -- a significant partner in deep, varied and fundamental ways," Halfon says.
"Many hunter-gatherer populations were based on one type of animal that provided many necessities such as food, clothing, tools and fuel," Prof. Barkai says. "For example, until 400,000 years ago prehistoric humans in Israel hunted elephants. Up to 40,000 years ago, residents of Northern Siberia hunted the woolly mammoth. When these animals disappeared from those areas, this had major ramifications for humans, who needed to respond and adapt to a new situation. Some had to completely change their way of life to survive."
According to the study, human groups adapted in different ways. Siberian residents seeking sustenance after the disappearance of mammoths migrated east and became the first settlers of Alaska and northern Canada. Cave dwellers in central Israel's Qesem Cave (excavated by Prof. Barkai) hunted fallow deer, far smaller than elephants, which required agility and social connections instead of robust physical strength. This necessitated far-reaching changes in their material and social culture and, subsequently, physical structure.
Halfon stresses the emotional reaction to an animal group's disappearance. "Humans felt deeply connected to the animals they hunted, considering them partners in nature, and appreciating them for the livelihood and sustenance they provided," he says. "We believe they never forgot these animals -- even long after they disappeared from the landscape."
An intriguing example of this kind of memory can be found in engravings from the Late Paleolithic period in Europe, which feature animals like mammoths and seals. Studies show that most of these depictions were created long after these two animals disappeared from the vicinity.
"These depictions reflect a simple human emotion we all know very well: longing," says Halfon. "Early humans remembered the animals that disappeared and perpetuated them, just like a poet who writes a song about his beloved who left him."
According to Prof. Barkai, another emotional response was a sense of responsibility -- even guilt. "Indigenous hunter-gatherer societies have been very careful to maintain clear rules about hunting. As a result, when an animal disappears, they ask: 'Did we behave properly? Is it angry and punishing us? What can we do to convince it to come back?'" he concludes. "Such a reaction has been exhibited by modern-day hunter-gatherer societies as well."
Source: American Friends of Tel Aviv University [April 27, 2020]
Halfon stresses the emotional reaction to an animal group's disappearance. "Humans felt deeply connected to the animals they hunted, considering them partners in nature, and appreciating them for the livelihood and sustenance they provided," he says. "We believe they never forgot these animals -- even long after they disappeared from the landscape."
An intriguing example of this kind of memory can be found in engravings from the Late Paleolithic period in Europe, which feature animals like mammoths and seals. Studies show that most of these depictions were created long after these two animals disappeared from the vicinity.
"These depictions reflect a simple human emotion we all know very well: longing," says Halfon. "Early humans remembered the animals that disappeared and perpetuated them, just like a poet who writes a song about his beloved who left him."
According to Prof. Barkai, another emotional response was a sense of responsibility -- even guilt. "Indigenous hunter-gatherer societies have been very careful to maintain clear rules about hunting. As a result, when an animal disappears, they ask: 'Did we behave properly? Is it angry and punishing us? What can we do to convince it to come back?'" he concludes. "Such a reaction has been exhibited by modern-day hunter-gatherer societies as well."
Source: American Friends of Tel Aviv University [April 27, 2020]
A New Explanation For The Origins Of Human Fatherhood
Humans differ from other primates in the types and amounts of care that males provide for their offspring. The precise timing of the emergence of human "fatherhood" is unknown, but a new theory proposes that it emerged from a need for partnership in response to changing ecological conditions, U.S. and French researchers report today in the Proceedings of the National Academy of Sciences.
The famous statue of Hermes holding the infant Dionysus by the sculptor Praxiteles is often interpreted as a celebration of fatherhood [Credit: © Hellenic Ministry of Culture and Sports/Ephorate of Antiquities of Ilia/Olympia Museum]
The new theory was developed using tools of economists and knowledge of the economic and reproductive behavior of human foragers. The theory focuses on the benefits of a "fit" between exclusive partners that enabled the strengths of males and females to provide for one another and their offspring, according to researchers from Boston College, Chapman University, University of New Mexico, and the University of Toulouse in France.
Scientists have long tried to explain how human fatherhood emerged. Paternal care - those investments in offspring made by a biological father - is rare among mammals but widespread across modern human subsistence societies. Much of men's parental investment consists of provisioning relatively helpless children with food for prolonged periods of time - for as long as two decades among modern hunter-gatherers. This is a sharp break with other great apes, whose observed mating systems do not encourage paternal provisioning.
Humans differ from other primates in the types and amounts of care that males provide for their offspring. The precise timing of the emergence of human "fatherhood" is unknown, but a new theory proposes that it emerged from a need for partnership in response to changing ecological conditions, U.S. and French researchers report today in the Proceedings of the National Academy of Sciences.
The famous statue of Hermes holding the infant Dionysus by the sculptor Praxiteles is often interpreted as a celebration of fatherhood [Credit: © Hellenic Ministry of Culture and Sports/Ephorate of Antiquities of Ilia/Olympia Museum]
The new theory was developed using tools of economists and knowledge of the economic and reproductive behavior of human foragers. The theory focuses on the benefits of a "fit" between exclusive partners that enabled the strengths of males and females to provide for one another and their offspring, according to researchers from Boston College, Chapman University, University of New Mexico, and the University of Toulouse in France.
Scientists have long tried to explain how human fatherhood emerged. Paternal care - those investments in offspring made by a biological father - is rare among mammals but widespread across modern human subsistence societies. Much of men's parental investment consists of provisioning relatively helpless children with food for prolonged periods of time - for as long as two decades among modern hunter-gatherers. This is a sharp break with other great apes, whose observed mating systems do not encourage paternal provisioning.
That paternal provisioning arose in humans seems remarkable and puzzling and has revolved around a discussion about two groups of males dubbed "Dads" and "Cads".
With promiscuous mating, a would-be Dad who provides food for a mate and their joint offspring without seeking additional mates risks being outcompeted in terms of biological fitness by a Cad, who focuses only on promiscuous mating instead of investing in offspring. Such a competitive disadvantage creates a formidable barrier for Dads to emerge when Cads abound.
An oft-invoked explanation for the evolution of paternal provisioning in humans is that ancestral females started mating preferentially with males who provided them with food, in exchange for female sexual fidelity. This explanation is insufficient for several reasons, the researchers write.
Instead, the team of anthropologists and economists argues that ecological change would have sufficed to trigger the spread of Dads, even in the face of female sexual infidelity, according to the report, "Paternal provisioning results from ecological change."
The key force in the theory of paternal provisioning is complementarities - in essence the cooperation between females and males, as well as between males. Complementarities are synergistic effects that increase per-capita benefits, which may arise from dividing labor and/or pooling resources. The path to complementarities began roughly five to eight million years ago, with a gradual drying in Africa, and a progressively greater need to rely on nutritious, diverse, spatially dispersed and relatively hard-to-obtain foods, including animal products.
In response to ecological change, ancestral hominins adapted in various ways, including efficient bipedal locomotion, dietary flexibility, and an ability to thrive in diverse environments, facilitated by tool use. Complementarities between males and females would have resulted from the nutrients that each sex specialized in acquiring: protein and fat acquired by males paired well with carbohydrates acquired by females.
Complementarities between males would have resulted from higher returns from hunting in groups instead of in isolation, and from food sharing to lower starvation risk. Dietary reliance on animal products is thus a key feature underlying these complementarities between and within sexes.
These complementarities would have led to a substantial increase in the impact of food provided by a Dad on the survival of his mate's offspring.
Using evolutionary game theory, the authors show that this impact can lead Dads to gain a fitness advantage over Cads, although Cads may still co-exist with Dads under certain conditions. If sons inherit their biological father's traits, then over time Dads will increase in number in a population. Theoretically connecting the evolution of paternal provisioning to ecological change allows the authors to make novel predictions about the paleontological and archeological record.
With promiscuous mating, a would-be Dad who provides food for a mate and their joint offspring without seeking additional mates risks being outcompeted in terms of biological fitness by a Cad, who focuses only on promiscuous mating instead of investing in offspring. Such a competitive disadvantage creates a formidable barrier for Dads to emerge when Cads abound.
An oft-invoked explanation for the evolution of paternal provisioning in humans is that ancestral females started mating preferentially with males who provided them with food, in exchange for female sexual fidelity. This explanation is insufficient for several reasons, the researchers write.
Instead, the team of anthropologists and economists argues that ecological change would have sufficed to trigger the spread of Dads, even in the face of female sexual infidelity, according to the report, "Paternal provisioning results from ecological change."
The key force in the theory of paternal provisioning is complementarities - in essence the cooperation between females and males, as well as between males. Complementarities are synergistic effects that increase per-capita benefits, which may arise from dividing labor and/or pooling resources. The path to complementarities began roughly five to eight million years ago, with a gradual drying in Africa, and a progressively greater need to rely on nutritious, diverse, spatially dispersed and relatively hard-to-obtain foods, including animal products.
In response to ecological change, ancestral hominins adapted in various ways, including efficient bipedal locomotion, dietary flexibility, and an ability to thrive in diverse environments, facilitated by tool use. Complementarities between males and females would have resulted from the nutrients that each sex specialized in acquiring: protein and fat acquired by males paired well with carbohydrates acquired by females.
Complementarities between males would have resulted from higher returns from hunting in groups instead of in isolation, and from food sharing to lower starvation risk. Dietary reliance on animal products is thus a key feature underlying these complementarities between and within sexes.
These complementarities would have led to a substantial increase in the impact of food provided by a Dad on the survival of his mate's offspring.
Using evolutionary game theory, the authors show that this impact can lead Dads to gain a fitness advantage over Cads, although Cads may still co-exist with Dads under certain conditions. If sons inherit their biological father's traits, then over time Dads will increase in number in a population. Theoretically connecting the evolution of paternal provisioning to ecological change allows the authors to make novel predictions about the paleontological and archeological record.
Bronze Age Swords Bear The Marks Of Skilled Fighters
Warriors during the Bronze Age used their weapons in skillful ways that would have required lots of training in specific techniques, researchers say.
An example of the damage caused by one of the replica swords
[Credit: Bronze Age Combat Team/Hotspur School of Defence]
A team led by Newcastle University examined thousands of marks on Bronze Age swords and staged experimental fights using replica weapons to better understand how they might have been used in the Bronze Age and the combat techniques that were needed.
Bronze—cast by mixing copper and tin—is softer than steel, meaning that it can be easily damaged. Until now, much speculation has focused on the possibility that because they are easy to damage, the ancient weapons were ceremonial rather than intended for battle.
However, the research findings, published in the Journal of Archaeological Method and Theory, indicate that not only were they used in active combat, but would have required fighters to use lots of skill and very particular techniques to minimize the amount of damage.
The work came out of the Bronze Age Combat Project (BACP), led by Dr. Andrea Dolfini at Newcastle University, and involving colleagues from Leicester and Durham universities, the British Museum and Great North Museum: Hancock.
Dr. Dolfini said: "The Bronze Age was the first time people used metal specifically to create weapons they could use against other people. People understood that these weapons could be very easily marked so sought to use them in ways that would limit the amount of damage received. It is likely that these specialized techniques would have to be learned from someone with more experience, and would have required a certain amount of training to be mastered."
Bronze Age sword types:
This revealed more about how swords and shields could have been used, and the type of damage that different strikes made to the weapons.
Armed with this knowledge, the researchers then used sophisticated use-wear analysis techniques to examine 2,500 wear marks on 110 ancient swords from Great Britain and Italy, comparing the damage marks on both the ancient weapons and the replicas.
The research involved staging experimental fights using replica weapons
[Credit: Bronze Age Combat Team/Hotspur School of Defence]
THEY ARE WEARING TOO MANY CLOTHES
This detailed two-part analysis allowed the research team to assign certain wear marks to specific sword moves and combinations. This indicated that fighters used their weapons to control and dominate the blade of their opponent, suggesting that much combat took place at close quarters.
Distinct styles
The sword combat and use-wear analysis elements of the research were led by Raphael Hermann while working towards his Ph.D. at Newcastle University. Talking to Science magazine, Dr. Hermann, who is now at the University of Gottingen, said: "In order to fight the way the marks show, there has to be a lot of training involved, and because the marks are so consistent from sword to sword, they suggest that different warriors weren't swinging at random, but were using well-practiced techniques. We also saw that wear patterns were linked to geography and time, suggesting distinct fighting styles developed over centuries."
It is the first time that anyone has used such an approach to get a better understanding of ancient combat and the research team anticipate that their work provides a new model for conducting research into ancient warfare.
Dr. Dolfini added: "You can't just give two people replicas of ancient weapons, tell them to fight and then say 'we know how they were used." What we did with the Bronze Age Combat Project is creating a meaningful blueprint for carrying out future experimental research into prehistoric combat, building a much greater understanding of how ancient weapons were used and the role of warriors in Bronze Age societies."
Warriors during the Bronze Age used their weapons in skillful ways that would have required lots of training in specific techniques, researchers say.
An example of the damage caused by one of the replica swords
[Credit: Bronze Age Combat Team/Hotspur School of Defence]
A team led by Newcastle University examined thousands of marks on Bronze Age swords and staged experimental fights using replica weapons to better understand how they might have been used in the Bronze Age and the combat techniques that were needed.
Bronze—cast by mixing copper and tin—is softer than steel, meaning that it can be easily damaged. Until now, much speculation has focused on the possibility that because they are easy to damage, the ancient weapons were ceremonial rather than intended for battle.
However, the research findings, published in the Journal of Archaeological Method and Theory, indicate that not only were they used in active combat, but would have required fighters to use lots of skill and very particular techniques to minimize the amount of damage.
The work came out of the Bronze Age Combat Project (BACP), led by Dr. Andrea Dolfini at Newcastle University, and involving colleagues from Leicester and Durham universities, the British Museum and Great North Museum: Hancock.
Dr. Dolfini said: "The Bronze Age was the first time people used metal specifically to create weapons they could use against other people. People understood that these weapons could be very easily marked so sought to use them in ways that would limit the amount of damage received. It is likely that these specialized techniques would have to be learned from someone with more experience, and would have required a certain amount of training to be mastered."
Bronze Age sword types:
a Group IV rapier (658 mm, 565.0 g).
b Kemenczei type S Vollgriffschwert (595 mm, 938.2 g).
c Wilburton type sword (562 mm, 511.5 g).
c Wilburton type sword (562 mm, 511.5 g).
d Carp’s Tongue type sword (745 mm, 761.5 g).
e Ewart Park type sword,
the two nearest the bottom were used for the actualistic tests (top 658 mm, 701.4 g; middle 696 mm, 753.0g; bottom 695 mm, 752.1 g) [Credit: Hermann et al. 2020]
The research team worked with members of Newcastle-based Hotspur School of Defence, a club dedicated to medieval European combat, to stage realistic sword fighting sequences, using specially commissioned replica weapons.
Wearing protective clothing, and using moves found in a combat manual from the Middle Ages, the trained volunteers tried a wide variety of sword, shield and spear strikes delivered to different body parts as researchers recorded the types of damage inflicted by different blows.
the two nearest the bottom were used for the actualistic tests (top 658 mm, 701.4 g; middle 696 mm, 753.0g; bottom 695 mm, 752.1 g) [Credit: Hermann et al. 2020]
The research team worked with members of Newcastle-based Hotspur School of Defence, a club dedicated to medieval European combat, to stage realistic sword fighting sequences, using specially commissioned replica weapons.
Wearing protective clothing, and using moves found in a combat manual from the Middle Ages, the trained volunteers tried a wide variety of sword, shield and spear strikes delivered to different body parts as researchers recorded the types of damage inflicted by different blows.
Armed with this knowledge, the researchers then used sophisticated use-wear analysis techniques to examine 2,500 wear marks on 110 ancient swords from Great Britain and Italy, comparing the damage marks on both the ancient weapons and the replicas.
The research involved staging experimental fights using replica weapons
[Credit: Bronze Age Combat Team/Hotspur School of Defence]
THEY ARE WEARING TOO MANY CLOTHES
This detailed two-part analysis allowed the research team to assign certain wear marks to specific sword moves and combinations. This indicated that fighters used their weapons to control and dominate the blade of their opponent, suggesting that much combat took place at close quarters.
Distinct styles
The sword combat and use-wear analysis elements of the research were led by Raphael Hermann while working towards his Ph.D. at Newcastle University. Talking to Science magazine, Dr. Hermann, who is now at the University of Gottingen, said: "In order to fight the way the marks show, there has to be a lot of training involved, and because the marks are so consistent from sword to sword, they suggest that different warriors weren't swinging at random, but were using well-practiced techniques. We also saw that wear patterns were linked to geography and time, suggesting distinct fighting styles developed over centuries."
It is the first time that anyone has used such an approach to get a better understanding of ancient combat and the research team anticipate that their work provides a new model for conducting research into ancient warfare.
Dr. Dolfini added: "You can't just give two people replicas of ancient weapons, tell them to fight and then say 'we know how they were used." What we did with the Bronze Age Combat Project is creating a meaningful blueprint for carrying out future experimental research into prehistoric combat, building a much greater understanding of how ancient weapons were used and the role of warriors in Bronze Age societies."
Study Places The Origin Of A Group Of Trees Growing In Africa 50 Million Years Ago
In the Eocene, some of the world's most important mountain ranges emerged and large climate changes took place that affected the future of the planet. In this era, about 50 million years ago, large groups of mammals and other animals also came , as did Daniellia clade, an array of legume plants which carry environmental relevance.
A tropical forest of Equatorial Guinea, one of the places where these trees grow
[Credit: University of Córdoba]
This is one of the main conclusions of a research project on which the University of Cordoba collaborated. This project places the origins of these trees in North Africa. As the only Spanish researcher on the study, Manuel de la Estrella, pointed out, this kind of legume boasts interest from the scientific community due to systematic and environmental reasons. Though most grow in humid rainforests, some have been able to adapt to dry areas that are completely different, such as savannahs and hearty forests of Madagascar, known for their emblematic baobabs. What is more, in contrast to what happens with other tropical plants, the diversity of these species is greater in Africa than in other tropical regions of Asia or the Americas.
The study, that was tracking these plants from the beginning, unlocked some of the mysteries about the plant group's distribution and diversity. As the research shows, this group emerged in North Africa when tropical rainforests flooded the northern part of the continent and even Europe, with the Paris basin being the location where the oldest fossil of this group was found. The emergence of a drier climate afforded a new lineage that spread to Madagascar, where nowadays species adapted to little rainfall grow. Several climate changes that occurred later brought about diversifications that led to the 10 species described in Africa.
In order to trace this evolution, explains Manuel de la Estrella, the fossil record was studied and they used a dating technique known as "molecular clock", a phylogenetic method that deduces the timeline of events using DNA sequences from different species.
Endangered species
The study also assessed the state of conservation of these legumes in accordance with IUCN categories with the aim of establishing conservation priorities. Even if these trees have demonstrated their enormous ability to adapt for 50 million years, eight of the fourteen species in Africa and Madagascar are currently endangered, due to climate change, among other reasons. "Although many of these species arose precisely as a consequence of previous climate changes, those changes happened gradually over millions of years, and so they were given time to adapt", explains the sole Spanish author of the article.
This research, says Manuel de la Estrella "allows us to understand how these plants emerged and understand how threatened their diversity is, which will help us to make better decisions". Conservation measures such as storing seeds and reintroducing genetically diverse plants in appropriate, protected habitats could help to guarantee the long-term survival of these species.
The findings are published in Molecular Phylogenetics and Evolution.
Source: University of Córdoba [April 29, 2020]
In the Eocene, some of the world's most important mountain ranges emerged and large climate changes took place that affected the future of the planet. In this era, about 50 million years ago, large groups of mammals and other animals also came , as did Daniellia clade, an array of legume plants which carry environmental relevance.
A tropical forest of Equatorial Guinea, one of the places where these trees grow
[Credit: University of Córdoba]
This is one of the main conclusions of a research project on which the University of Cordoba collaborated. This project places the origins of these trees in North Africa. As the only Spanish researcher on the study, Manuel de la Estrella, pointed out, this kind of legume boasts interest from the scientific community due to systematic and environmental reasons. Though most grow in humid rainforests, some have been able to adapt to dry areas that are completely different, such as savannahs and hearty forests of Madagascar, known for their emblematic baobabs. What is more, in contrast to what happens with other tropical plants, the diversity of these species is greater in Africa than in other tropical regions of Asia or the Americas.
The study, that was tracking these plants from the beginning, unlocked some of the mysteries about the plant group's distribution and diversity. As the research shows, this group emerged in North Africa when tropical rainforests flooded the northern part of the continent and even Europe, with the Paris basin being the location where the oldest fossil of this group was found. The emergence of a drier climate afforded a new lineage that spread to Madagascar, where nowadays species adapted to little rainfall grow. Several climate changes that occurred later brought about diversifications that led to the 10 species described in Africa.
In order to trace this evolution, explains Manuel de la Estrella, the fossil record was studied and they used a dating technique known as "molecular clock", a phylogenetic method that deduces the timeline of events using DNA sequences from different species.
Endangered species
The study also assessed the state of conservation of these legumes in accordance with IUCN categories with the aim of establishing conservation priorities. Even if these trees have demonstrated their enormous ability to adapt for 50 million years, eight of the fourteen species in Africa and Madagascar are currently endangered, due to climate change, among other reasons. "Although many of these species arose precisely as a consequence of previous climate changes, those changes happened gradually over millions of years, and so they were given time to adapt", explains the sole Spanish author of the article.
Furthermore, overexploitation by mankind is another main factor threatening the future of these species. Deforestation and dependence upon wood for use in construction and as fuel exerts heavy pressure, especially in areas in the savannah where trees are few and far between.
This research, says Manuel de la Estrella "allows us to understand how these plants emerged and understand how threatened their diversity is, which will help us to make better decisions". Conservation measures such as storing seeds and reintroducing genetically diverse plants in appropriate, protected habitats could help to guarantee the long-term survival of these species.
The findings are published in Molecular Phylogenetics and Evolution.
Source: University of Córdoba [April 29, 2020]
IN CASE YOU MISSED IT
Extinction Of Threatened Marine Megafauna Would Lead To Huge Loss In Functional Diversity
In a paper published in Science Advances, an international team of researchers have examined traits of marine megafauna species to better understand the potential ecological consequences of their extinction under different future scenarios.
Sharks are predicted to be the most affected, with losses of functional richness far beyond those expected under random extinctions [Credit: Terry Goss/WikiCommons]
Defined as the largest animals in the oceans, with a body mass that exceeds 45kg, examples include sharks, whales, seals and sea turtles. These species serve key roles in ecosystems, including the consumption of large amounts of biomass, transporting nutrients across habitats, connecting ocean ecosystems, and physically modifying habitats.
Traits, such as how large they are, what they eat, and how far they move, determine species' ecological functions. As a result, measuring the diversity of traits allows scientists to quantify the contributions of marine megafauna to ecosystems and assess the potential consequences of their extinction.
The team of researchers - led by Swansea University's Dr Catalina Pimiento - first compiled a species-level trait dataset for all known marina megafauna to understand the extent of ecological functions they perform in marine systems. Then, after simulating future extinction scenarios and quantifying the potential impact of species loss on functional diversity, they introduced a new index (FUSE) to inform conservation priorities.
The results showed a diverse range of functional traits held by marine megafauna, as well as how the current extinction crisis might affect their functional diversity. If current trajectories are maintained, in the next 100 years we could lose, on average, 18% of marine megafauna species, which will translate in the loss of 11% of the extent of ecological functions. Nevertheless, if all currently threatened species were to go extinct, we could lose 40% of species and 48% of the extent of ecological functions.
An infographic displaying how the extinction of threatened marine megafauna species could result in larger than expected losses in functional diversity [Credit: Swansea University]
Given the global extinction crisis, a crucial question is to what extent nature holds a back-up system. In the event of extinction, will there be remaining species that can perform a similar ecological role?
Dr John Griffin, a co-author on the study from Swansea University adds: "Our results show that, among the largest animals in the oceans, this so-called "redundancy" is very limited - even when you roll in groups from mammals to molluscs. If we lose species, we lose unique ecological functions. This is a warning that we need to act now to reduce growing human pressures on marine megafauna, including climate change, while nurturing population recoveries."
Source: Swansea University [April 17, 2020]
Extinction Of Threatened Marine Megafauna Would Lead To Huge Loss In Functional Diversity
In a paper published in Science Advances, an international team of researchers have examined traits of marine megafauna species to better understand the potential ecological consequences of their extinction under different future scenarios.
Sharks are predicted to be the most affected, with losses of functional richness far beyond those expected under random extinctions [Credit: Terry Goss/WikiCommons]
Defined as the largest animals in the oceans, with a body mass that exceeds 45kg, examples include sharks, whales, seals and sea turtles. These species serve key roles in ecosystems, including the consumption of large amounts of biomass, transporting nutrients across habitats, connecting ocean ecosystems, and physically modifying habitats.
Traits, such as how large they are, what they eat, and how far they move, determine species' ecological functions. As a result, measuring the diversity of traits allows scientists to quantify the contributions of marine megafauna to ecosystems and assess the potential consequences of their extinction.
The team of researchers - led by Swansea University's Dr Catalina Pimiento - first compiled a species-level trait dataset for all known marina megafauna to understand the extent of ecological functions they perform in marine systems. Then, after simulating future extinction scenarios and quantifying the potential impact of species loss on functional diversity, they introduced a new index (FUSE) to inform conservation priorities.
The results showed a diverse range of functional traits held by marine megafauna, as well as how the current extinction crisis might affect their functional diversity. If current trajectories are maintained, in the next 100 years we could lose, on average, 18% of marine megafauna species, which will translate in the loss of 11% of the extent of ecological functions. Nevertheless, if all currently threatened species were to go extinct, we could lose 40% of species and 48% of the extent of ecological functions.
An infographic displaying how the extinction of threatened marine megafauna species could result in larger than expected losses in functional diversity [Credit: Swansea University]
Sharks are predicted to be the most affected, with losses of functional richness far beyond those expected under random extinctions.Dr Catalina Pimiento, who led the research from Swansea University said: "Our previous work showed that marine megafauna had suffered an unusually intense period of extinction as sea levels oscillated several million years ago. Our new work shows that, today, their unique and varied ecological roles are facing an even larger threat from human pressures."
Given the global extinction crisis, a crucial question is to what extent nature holds a back-up system. In the event of extinction, will there be remaining species that can perform a similar ecological role?
Dr John Griffin, a co-author on the study from Swansea University adds: "Our results show that, among the largest animals in the oceans, this so-called "redundancy" is very limited - even when you roll in groups from mammals to molluscs. If we lose species, we lose unique ecological functions. This is a warning that we need to act now to reduce growing human pressures on marine megafauna, including climate change, while nurturing population recoveries."
Source: Swansea University [April 17, 2020]
'Colours Of The Etruscans' At The Centrale Montemartini, ITALY
ANOTHER FIND FROM THE MUSEUM STORAGE ROOM
An extraordinary selection of figurative wall panels and architectural moulded decorations in polychrome terracotta, coming from the territory of Cerveteri (the ancient city of Caere) and partly unpublished. The exhibition has been extended until 28 June 2020
Fragments of a painted panel depicting an armed man, inv. provision SYM 2017/125.
Seizure carried out by the TPC Carabinieri at the Geneva Free Port
[Credit: Centrale Montemartini]
These are testimonies of fundamental importance for the history of Etruscan painting, recently returned to Italy thanks to the action of the Carabinieri's illegal trafficking of archaeological finds and the cultural diplomacy of Mibac.
At the beginning of 2016 the Carabinieri of the Nucleus for the Protection of Cultural Heritage recovered in Geneva a large quantity of finds illegally stolen from Italy: together with figured vases of Magna Graecia and Roman statues, an extraordinary series of wall panels and Etruscan architectural fragments of lively polychromy, accumulated in shattered pieces in tens of boxes, were found without any coherent order.
Louterion base (?) with dolphin figures, inv. provision C MANG 2017/2. Deposits of the Necropolis of the Banditaccia of Cerveteri. 6th century BC [Credit: Centrale Montemartini]
Fragment of a prancing swan figure, inv. SYM 158. SABAP deposit of Pyrgi
[Credit: Centrale Montemartini]
Fragment of prancing swan figure with meander, SABAP Deposit in Cerverteri
[Credit: Centrale Montemartini]
Boxes containing fragments of the painted wall panels, at the time of seizure
[Credit: Centrale Montemartini]
Careful study and restoration work carried out by SABAP on these finds, the result of clandestine excavations and therefore devoid of contextual data, has made it possible to recognize in a large number of fragments, thanks to their technical characteristics and refined execution, Etruscan painted panels from ancient Cerveteri, known so far only from examples present in some of the most important Italian and foreign museum collections.
This fortunate recovery of the artworks was followed by the ratification of an important international cultural cooperation agreement signed between Mibac and the Ny Carlsberg Glyptotek in Copenhagen, which involved the return from Denmark to Italy of a further substantial series of fragments of Etruscan painted panels, similar to those found in Geneva.
Wall panel with figures of horsemen, inv. HIN 717. SABAP deposit of Cerveteri
[Credit: Centrale Montemartini]
Piece of painted wall panel with figure of dancer, inv. with SYM 2017/326. Seizure made
by TPC Carabinieri at the Geneva Free Port [Credit: Centrale Montemartini]
Architectural fragment with male face, inv. SYM 2017/437. From the SABAP warehouse in Pyrgi
[Credit: Centrale Montemartini]
Terracotta antefix painted with Satyr and Maenad. Getty Museum Restitution
[Credit: Centrale Montemartini]
A first phase of study and research conducted on these precious materials, dated between 530 and 480 BC, culminated in an exhibition and an international conference of studies organized by SABAP at the Castello di Santa Severa (Santa Marinella, Rome) in June 2018, which is now followed by the Roman edition of the exhibition, in the prestigious headquarters of the Centrale Montemartini, in a renovated and updated layout thanks to the presentation of the latest research results.
The exhibition is divided into several themes (the exploits of Hercules and other myths; dance; athletes and warriors; contexts; architectural terracottas) and is intended to offer the public a comprehensive interpretation of the recovered Etruscan painted terracotta fragments, decontextualized by excavation and clandestine trade, with respect to the history and artistic production of ancient Caere at the height of its cultural splendour.
Laconian Kylix with figures of warriors. Attributed to the Hunting Painter, 550-525 BC
SABAP RM Met [Credit: Centrale Montemartini]
Attic red figure krater signed by the master potter Euphronios, depicting Hercules fighting Kyknos, inv. provision NY-SW1. Dated around 510 BC. Restored by the Metropolitan Museum of Art in New York in 2010 [Credit: Centrale Montemartini]
Attic red figure Kylix with figure of a young athlete, cat. 145144. Attributed to the painter
of Nikosthenes, 510-500 BC Returned by the Getty Museum of Los Angeles in 2006
[Credit: Centrale Montemartini]
Attic red figure plate with Scythian warrior, inv. provision SQMED 980.
SABAP RM Met [Credit: Centrale Montemartini]
Various archaeological materials on display in the exhibition complement and deepen the themes dealt with in the various exhibition sections are also partly the result of recoveries made by the Carabinieri, partly of returns made on the basis of international agreements between Mibac and prestigious foreign museums.
These materials are joined by the valuable nucleus of Attic black and red-figure vases from the Castellani Collection of the Capitoline Museums, normally not on display to the public, and chosen for thematic analogy.
Attic black figure Lekythos depicting Hercules fighting the Stymphalian birds, cat. 145137.
Datable around 490 BC. Returned by the Museum of Fine Arts
in Boston in 2006 [Credit: Centrale Montemartini]
Attic black figure amphora depicting Hercules fighting with the Nemean lion in the presence
of Athena. Attributed to the Conservators' Painter, 530-520 BC Capitoline Museums,
Castellani Collection, inv. Ca 74. [Credit: Centrale Montemartini]
Attic red-figure amphora with a fight scene over a tripod, 480-470 BC.
Return Getty Museum [Credit: Centrale Montemartini]
Attic red figure Pelike with musical scene. Attributed to the Painter of the Louvre G238.
Datable around 470 BC Capitoline Museums, Castellani Collection, cat. ca. 176. [Credit: Centrale Montemartini]
The exhibition not only marks the 50th anniversary of the Centrale Montemartini, but is also intended to recognise the tireless work carried out by the Carabinieri Command for the Protection of Cultural Heritage, engaged daily in its action to combat the illegal trafficking of works of art in Italy.
'Colours of the Etruscans' will run until June 28, 2020.
Source: Centrale Montemartini [trsl. TANN / December 30, 2020]
Fragments of a painted panel depicting an armed man, inv. provision SYM 2017/125.
Seizure carried out by the TPC Carabinieri at the Geneva Free Port
[Credit: Centrale Montemartini]
These are testimonies of fundamental importance for the history of Etruscan painting, recently returned to Italy thanks to the action of the Carabinieri's illegal trafficking of archaeological finds and the cultural diplomacy of Mibac.
At the beginning of 2016 the Carabinieri of the Nucleus for the Protection of Cultural Heritage recovered in Geneva a large quantity of finds illegally stolen from Italy: together with figured vases of Magna Graecia and Roman statues, an extraordinary series of wall panels and Etruscan architectural fragments of lively polychromy, accumulated in shattered pieces in tens of boxes, were found without any coherent order.
Louterion base (?) with dolphin figures, inv. provision C MANG 2017/2. Deposits of the Necropolis of the Banditaccia of Cerveteri. 6th century BC [Credit: Centrale Montemartini]
Fragment of a prancing swan figure, inv. SYM 158. SABAP deposit of Pyrgi
[Credit: Centrale Montemartini]
Fragment of prancing swan figure with meander, SABAP Deposit in Cerverteri
[Credit: Centrale Montemartini]
Boxes containing fragments of the painted wall panels, at the time of seizure
[Credit: Centrale Montemartini]
Careful study and restoration work carried out by SABAP on these finds, the result of clandestine excavations and therefore devoid of contextual data, has made it possible to recognize in a large number of fragments, thanks to their technical characteristics and refined execution, Etruscan painted panels from ancient Cerveteri, known so far only from examples present in some of the most important Italian and foreign museum collections.
This fortunate recovery of the artworks was followed by the ratification of an important international cultural cooperation agreement signed between Mibac and the Ny Carlsberg Glyptotek in Copenhagen, which involved the return from Denmark to Italy of a further substantial series of fragments of Etruscan painted panels, similar to those found in Geneva.
Wall panel with figures of horsemen, inv. HIN 717. SABAP deposit of Cerveteri
[Credit: Centrale Montemartini]
Piece of painted wall panel with figure of dancer, inv. with SYM 2017/326. Seizure made
by TPC Carabinieri at the Geneva Free Port [Credit: Centrale Montemartini]
Architectural fragment with male face, inv. SYM 2017/437. From the SABAP warehouse in Pyrgi
[Credit: Centrale Montemartini]
Terracotta antefix painted with Satyr and Maenad. Getty Museum Restitution
[Credit: Centrale Montemartini]
A first phase of study and research conducted on these precious materials, dated between 530 and 480 BC, culminated in an exhibition and an international conference of studies organized by SABAP at the Castello di Santa Severa (Santa Marinella, Rome) in June 2018, which is now followed by the Roman edition of the exhibition, in the prestigious headquarters of the Centrale Montemartini, in a renovated and updated layout thanks to the presentation of the latest research results.
The exhibition is divided into several themes (the exploits of Hercules and other myths; dance; athletes and warriors; contexts; architectural terracottas) and is intended to offer the public a comprehensive interpretation of the recovered Etruscan painted terracotta fragments, decontextualized by excavation and clandestine trade, with respect to the history and artistic production of ancient Caere at the height of its cultural splendour.
Laconian Kylix with figures of warriors. Attributed to the Hunting Painter, 550-525 BC
SABAP RM Met [Credit: Centrale Montemartini]
Attic red figure krater signed by the master potter Euphronios, depicting Hercules fighting Kyknos, inv. provision NY-SW1. Dated around 510 BC. Restored by the Metropolitan Museum of Art in New York in 2010 [Credit: Centrale Montemartini]
Attic red figure Kylix with figure of a young athlete, cat. 145144. Attributed to the painter
of Nikosthenes, 510-500 BC Returned by the Getty Museum of Los Angeles in 2006
[Credit: Centrale Montemartini]
Attic red figure plate with Scythian warrior, inv. provision SQMED 980.
SABAP RM Met [Credit: Centrale Montemartini]
Various archaeological materials on display in the exhibition complement and deepen the themes dealt with in the various exhibition sections are also partly the result of recoveries made by the Carabinieri, partly of returns made on the basis of international agreements between Mibac and prestigious foreign museums.
These materials are joined by the valuable nucleus of Attic black and red-figure vases from the Castellani Collection of the Capitoline Museums, normally not on display to the public, and chosen for thematic analogy.
Attic black figure Lekythos depicting Hercules fighting the Stymphalian birds, cat. 145137.
Datable around 490 BC. Returned by the Museum of Fine Arts
in Boston in 2006 [Credit: Centrale Montemartini]
Attic black figure amphora depicting Hercules fighting with the Nemean lion in the presence
of Athena. Attributed to the Conservators' Painter, 530-520 BC Capitoline Museums,
Castellani Collection, inv. Ca 74. [Credit: Centrale Montemartini]
Attic red-figure amphora with a fight scene over a tripod, 480-470 BC.
Return Getty Museum [Credit: Centrale Montemartini]
Attic red figure Pelike with musical scene. Attributed to the Painter of the Louvre G238.
Datable around 470 BC Capitoline Museums, Castellani Collection, cat. ca. 176. [Credit: Centrale Montemartini]
The exhibition not only marks the 50th anniversary of the Centrale Montemartini, but is also intended to recognise the tireless work carried out by the Carabinieri Command for the Protection of Cultural Heritage, engaged daily in its action to combat the illegal trafficking of works of art in Italy.
'Colours of the Etruscans' will run until June 28, 2020.
Source: Centrale Montemartini [trsl. TANN / December 30, 2020]
'Gods In Colour: Polychromy In Antiquity' At The Liebieghaus Skulpturensammlung, Frankfurt
For more than fifteen years, the polychromy of ancient Greek and Roman sculpture has been captivating the public worldwide. Some three million visitors have experienced the 'Gods in Colour — Golden Edition' firsthand in the museums of cities such as Athens, Istanbul, Copenhagen, London, Malibu, Mexico City, Munich, Berlin, Rome, Vienna and, most recently, San Francisco—as well as those of renowned universities, among them Harvard and Oxford. The Liebieghaus Skulpturensammlung is now presenting a major expanded exhibition allowing a nuanced look at the disconcerting phenomenon of statuary polychromy. 'Gods in Colour — Golden Edition: Polychromy in Antiquity' features more than 100 objects from international museum collections such as the British Museum in London, the Museo Archeologico in Naples, the Ny Carlsberg Glyptotek in Copenhagen, the Archaologisches Institut in Gottingen, and the Skulpturensammlung der Staatlichen Kunstsammlungen Dresden, as well as the holdings of the Liebieghaus, which encompass 60 recent reconstructions but also some dating from the nineteenth century, along with 22 prints.
Credit: Liebieghaus Skulpturensammlung
“The polychromy of ancient sculpture is a fascinating phenomenon, and one that continues to surprise and astonish us despite in-depth research over the past decades and the publication of important results. The image of white marble sculpture and architecture still dominates our conception of antiquity today. The Liebieghaus Skulpturensammlung and a team of scholars around Vinzenz Brinkmann—part of an international research network—untiringly devote themselves to correcting this misconception once and for all. The expanded exhibition 'Gods in Colour—Golden Edition' at the Liebeighaus Skulpturensammlung presents the latest instructive findings as well as a resume of forty years of intensive research into the polychromy of ancient sculpture,” Dr. Philipp Demandt, the director of the Liebieghaus Skulpturensammlung, comments on the exhibition.
Under the direction of Vinzenz Brinkmann, the head of the Liebieghaus antiquity collection, an international team of scientists have been researching statuary polychromy for some forty years. Their work has inspired new research projects on the polychromy of ancient Greek and Roman sculpture at universities and museums in many countries. The primary focus of these projects is the scientific analysis of the original paints. Within this context, the history of how scholars responded to polychromy in the period from the mid-eighteenth century to World War I—and their extensive accompanying reconstruction activities—have been subjects of particular interest. Since the exhibition 'Gods in Colour' was first on view in Frankfurt in 2008, the number of reconstructions carried out by the research team has doubled, and new aspects have come under consideration, for example the polychromy of ancient bronzes. In 2016, Ulrike Koch-Brinkmann and Vinzenz Brinkmann donated the reconstructions in their possession to the Stadelstiftung.
Exhibition View [Credit: Liebieghaus Skulpturensammlung/
Norbert Miguletz]
Originally, the painted decoration of an antique sculpture not only enhanced its appearance from the aesthetic point of view and increased its lifelike impression, but also provided the ancient viewer with important information about the identity of the figure depicted. Over the past decade, research has focused increasingly on this aspect. In the process, new interpretation proposals have been developed not only in the context of large-scale Greek bronzes, but also for numerous marble sculptures. In the ancient world of the eastern Mediterranean region, the use of colour was par for the course. For the Greeks and Romans, however, the painting of sculpture was far more than superficial decoration. Rather, polychromy had means of its own for expanding the formal and narrative structure of the artwork. It was only through the dimension of colour that artists achieved the desired vibrancy of expression.
Experimental colour reconstruction, Variant B, of the so-called Cuirass Torso from the
Athenian Acropolis, plaster cast, natural pigments in egg tempera, gold leaf, h. ca. 62 cm,
2005, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project),
Frankfurt am Main, inv. St.P 686 [Credit: Liebieghaus Skulpturensammlung/
Norbert Miguletz]
The examples presented in the exhibition illustrate the different conventions that governed polychromy in the archaic (650–480 BC) and classical (480–330 BC) periods. Objects and figures were coloured in such a way as to resemble their models in nature. Where the choice of colours did not correspond to reality, it served to support the narrative content. The standing figure of a naked young man (kouros) or richly bejeweled maiden (kore) were characteristic of the Greek sculpture of the archaic period. Figures such as the Kouros of Tenea (original: Greece, ca. 560 BC, marble, Staatliche Antikensammlungen und Glyptothek, Munich) served to decorate graves and sanctuaries. The generic colour reconstruction of 2015 unites the surviving traces and details of the polychromy of several statues: the hair of the head is styled with ribbons, that on the breast and around the genitals possesses an ornamental quality, and the ear jewelry emphasizes the aristocratic origins. The colours are evidently indebted to the Egyptian tradition—the blue indicating the hair and the light brown skin colour of the skin, for example, are found on Egyptian sarcophagi and reliefs.
Ancient written sources describe the wealth of colour and form characterizing the garments of the neighbors to the north and east, which fascinated the Greek artists. The splendidly colourful costume of the so-called Persian Rider from the Acropolis (original: Athens, 500/480 BC, Acropolis Museum, Athens) is especially well preserved. The diamond pattern of the trousers in the colour reconstruction of 2008/2019 exhibits sophisticated rhythmic alternations between the strongly contrasting shades of red, blue, yellow, green and brown; the tunic features an imaginative and complex tongue ornament. This clothing style of the peoples to the north and east was used around 480 BC on the west pediment of the Temple of Aphaia on Aegina to make a kneeling archer recognizable from a distance.
Experimental colour reconstruction, Variant C, of an archer, the so-called Paris , wearing the costume of the horsemen of the neighbouring peoples to the north and east, from the west pediment of Aphaia Temple, artificial marble, natural pigments in egg tempera, lead, wood, h. 96 cm, 2019, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project),Frankfurt am Main, inv. St.P 947 [Credit: Liebieghaus Skulpturensammlung/
Norbert Miguletz]
Dating from 2010/2019, the reconstruction of the Phrasikleia represents a young woman wearing sandals, a long, richly patterned dress, jewelry, and on her head a floral crown consisting of lotus buds and blossoms. The bright red gown is adorned with a red and yellow scattered pattern and decorative borders. The rosette petals of the appliques are made of gold and lead tin foil. The 2012 reconstruction of the so-called Chios Kore depicts a girl in a long skirt and a kind of undergarment made of a fine fabric forming multiple folds. The Swiss artist Emile Gillieron already painted a watercolour documenting the vestiges of vibrant blue and red paint on the original statue when it was excavated at the end of the nineteenth century. Investigations carried out in 2010 did in fact bring the pigments azurite and vermilion to light. The modern researchers moreover found the lead yellow and light-yellow ocher their predecessors had observed back in 1904. Whereas the costume of the so-called Chios Kore thus offers direct insights into the fashions of the late sixth century BC, the decorative pattern and lotus flower ornament of the Phrasikleia make symbolic reference to the cycle of life and death.
The so-called Peplos Kore wears a tight-fitting outer garment without folds over an undergarment. The archaeologists equated the former with the so-called peplos (a women’s dress style in ancient Greece) and erroneously called the figure the Peplos Kore. In fact, however, the garments—and with them the figure’s true significance—only became clear with the aid of the polychromy. Recent research has enabled a complete understanding of the figure’s complex colour scheme. The exhibition presents a new, revised reconstruction of the socalled Peplos Kore. Indications of the steps preceding the painting process have now been discovered, as have weathering traces of the paint. The polychromy— in particular the animalfrieze garment (ependytes), a crown of feathers meanwhile lost (vestiges of its mounts are still visible on the head), the weapons and the immobile body—gives the figure its true identity. The statue mistakenly designated the Peplos Kore is actually a marble representation of a xoanon, an ancient wooden cult image of the goddess Artemis.
Experimental colour reconstruction, Variant B, of the so-called Peplos Kore from the Athenian Acropolis, stucco marble on plaster cast, natural pigments in egg tempera, crown and weapons made of gilded and silvered wood, h. 136 cm, 2005, reworked in 2019, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project), Frankfurt
am Main, inv. St.P 687 [Credit: Liebieghaus Skulpturensammlung/
Norbert Miguletz]
Sculptures also received a polychrome finish in the Hellenistic period (330–30 BC). In several cases, the researchers have been able to prove that the naked areas of the human figure were painted with a reddish-brown or light brown hue. As we have learned from the reliefs of the so-called Alexander Sarcophagus from the royal necropolis of Sidon (original: Lebanon, ca. 320 BC, Archaeological Museum, Istanbul), the colour scheme was determined to a decisive degree by the contrasts between radiant blue, intense red and golden ocher.
Gilding played an extremely important role, occupying ever larger areas of the surfaces and serving as a painting surface itself. The precious material was used again and again to represent jewelry on humans and animals alike. Gold and silver plating and coloured stone inlays enhanced the splendor and light reflection of the ancient works. Remnants of leaf gilding on garment hems of Greek sculptures give rise to speculations that the edges of ancient garment fabrics were piped with gold threads. The traces of gold on the marble figure of the so-called Small Herculaneum Woman are an example. The late classical original of this work no longer exists, but dozens of late Greek and Roman replicas have come down to us.
Experimental study of the polychromy of the so-called Treu Head, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project in cooperation with the British Museum, London), Frankfurt am Main[Credit: Liebieghaus Skulpturensammlung/Norbert Miguletz]
The figure of a young woman sports a hairstyle made up of several braids woven together in a tight knot. She is in the act of pulling her mantle tightly around her with both hands. The colour reconstruction of 2019 is based on examinations of the polychromy on a replica found in Delos in 1894 (original with polychromy: Delos, 2nd century BC, marble, National Archaeological Museum, Athens) and uses the cast of the eponymous replica discovered in Herculaneum in 1706 (original from which the cast was made: Herculaneum, 1st century AD, marble, Staatliche Kunstsammlungen Dresden, Skulpturensammlung). The reconstruction combines the traces of polychromy documented since the excavation. Particularly the colour scheme of the mantle reveals the sculptor’s intent: the fine greenish fabric is transparent everywhere where the mantle stretches across the body’s curves and protrusions.
One section of the exhibition revolves around a three-year research project carried out in cooperation with scholars from Frankfurt’s Goethe University and concluded in January 2020. The aim was the development of physical models as well as an interactive digital publication for communicating the research and reconstruction of the polychromy of ancient Greek sculpture to specialists, students and a broader public. A statue from the Frankfurt Group of Muses was chosen as the object of this case study. This figure presumably comes from the sacred island of Delos dedicated to Artemis and Apollo (Standing Muse from the Thermal Baths of Agnano, originally from Delos, 2nd century BC). It bears a wealth of information—however difficult to see—about its original polychromy. The researchers compared it to a marble statue of the Small Herculaneum Woman type which was erected on Delos around the same time (ca. 120–100 BC) and whose polychromy has survived in better condition with a marble statue of the Small Herculaneum Woman type which was erected on Delos around the same time (ca. 120–100 BC), and whose polychromy has survived in better condition.
Statue of the Muse in downscaled form with depiction of vestiges of paint (left) and downscaled Muse, Variant D (right), stucco marble on PMMA, natural pigments in egg tempera, gold leaf (right), h. 39 cm, 2019, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project), Frankfurt am Main, inv. LG 227 and 226 (on loan from the Goethe University Frankfurt, Institute of Archaeological Sciences, dept. I: Classical Archaeology, cast collection)
[Credit: Liebieghaus Skulpturensammlung/Norbert Miguletz]
Since the first excavations in the eighteenth century, the representation of naked skin has presented scholars with difficulties. Apart from the disapproval brought about by the then modern sense of aesthetics, the generally poor state of the skin colour has played a decisive role in scholars’ neglect of the matter. The exhibition devotes itself to this topic in colour reconstructions realized according to the latest scientific findings, for example those of the socalled Treu Head (original: Rome, 2nd century AD, marble, The British Museum, London) and the Portrait of the Roman Emperor Caligula (original: AD 37–41, Ny Carlsberg Glyptotek, Copenhagen).
New examinations of the Treu Head—a depiction of a female deity—at the British Museum encompassed a large number of paint analyses that yielded precise information about the painting technique and the pigments used. For the representation of the skin, the ancient artist employed calcite mixed with not only red and yellow ferric oxides but also a small amount of Egyptian blue, which lends the skin a somewhat cooler touch. As is also the case with the Portrait of the Roman Emperor Caligula, pink madder lake was used for the space between the lips and the corners of the eyes. The Treu Head bears key significance in the current polychromy discussion. Evidently the light female skin was characterized with the aid of paint, while the precious marble served merely as the support material.
Exhibition View [Credit: Liebieghaus Skulpturensammlung/Norbert Miguletz]
To date, it has not been possible to provide a conclusive answer to the question of how the polychrome enhancement of bronze statues related to marble polychromy. The research team undertook extensive initial approximations of the original appearance of bronzes, with the famous Warriors of Riace (originals: Greece, 5th century BC, Museo Archeologico Nazionale, Reggio di Calabria) and the original Bronze Sculptures from the Roman Quirinal Hill (originals: Greece, end of 4th or 3rd century BC, Museo Nazionale Romano, Rome) as examples. In the reconstructions of the two Riace Warriors, the illusion of suntanned skin was achieved with numerous layers of a much-diluted bitumen lacquer containing a bit of red pigment.
The extremely lifelike impression is brought about by the elaborately made stone inlays for the eyes, nipples inlaid in copper, and lips and teeth covered with silver sheeting. Within the framework of the scientific investigations and recasts of the originals as well as the making of the reconstructions in the years 2012–2016, Warrior A turned out to be a portrayal of Erechtheus, son of the goddess Athena, and Warrior B of the Thracian king Eumolpos, son of Poseidon, god of the sea. The examinations of the so-called Quirinal Bronzes in the same years (2012–2018) confirmed the conjecture that the two figures represent heroes from the Greek Argonaut saga: Amycus, king of the Bebryces, and Polyceuces, an Argonaut and son of Zeus, who encounter one another in a boxing match.
Research network and latest analysis techniques
Over the past decades, information about the original ancient marble sculptures has been obtained with the aid of scientific methods, and has in turn served as the basis for the production of experimental reconstructions. The participating scholars have also reevaluated ancient written sources on statuary polychromy. Apart from precisely made plaster casts, copies of ancient sculptures have been produced in marble and, most recently, as 3D prints. These copies have then received polychrome finishes using authentic historical painting materials. In 2020, the long series of three-dimensional physical reconstructions is entering its thirtieth year.
Ulrike Koch-Brinkmann and Vinzenz Brinkmann undertook their first experimental colour reconstructions on copies of originals back in 1989. This work was based on their own scientific investigations, but also and above all on the results of numerous research projects implemented on the international level. At important museums such as the British Museum in London, the Louvre in Paris, the Acropolis Museum in Athens, the Pergamonmuseum in Berlin, the Ny Carlsberg Glyptotek in Copenhagen and the Metropolitan Museum in New York, archaeologists, conservators and scientists have worked together successfully to further the research into the polychromy of their own respective holdings. What is more, a large number of extensive independent research and dissertation projects have been realized.
Methods of scientific investigation have been developed further and refined. The visibleinduced infrared luminescence (VIL) imagining technique has been developed, for example, and thermographic imaging methods optimized. The researchers have also profited extensively from the new development of portable, non-invasive analysis techniques with whose aid myriad colour measurements have been carried out on the objects. Over the past years, this has led to a tremendous increase in knowledge about the pigments used in antiquity. X-ray fluorescence, a portable method for the nuanced ascertainment of a material’s metal content, has enabled the rapid identification of a large number of inorganic pigments without taking samples. UV-VIS absorption spectroscopy is capable of identifying both pigments and colourants such as plant dyes. It thus comes into play for the determination of nearly all inorganic, but also organic materials.
The measurement, which amounts to an optical fingerprint, also encompasses the physical ascertainment of the antique material’s hue. Particularly in the context of reconstructing ancient polychromy, this chromatic definition permits an extremely precise approximation of the original appearance. Based on these new technical means of making light visible, but also the scientific analysis of pigment traces, the team around Vinzenz Brinkmann have arrived at detailed results and more precise forms of communication over the course of many years of work. For their work they have received support from the German Research Foundation, the Stiftung Archaologie, and the Leibniz Prize project of Prof. Dr. Oliver Primavesi, from Salvatore Settis, the government of the Republic of Italy, the Stadelscher Museums-Verein and, most recently, the German Federal Ministry of Education and Research as well as the Goethe University of Frankfurt am Main with Prof. Dr. Dirk Wicke.
'Gods in Colour — Golden Edition' will run until August 30, 2020]
For more than fifteen years, the polychromy of ancient Greek and Roman sculpture has been captivating the public worldwide. Some three million visitors have experienced the 'Gods in Colour — Golden Edition' firsthand in the museums of cities such as Athens, Istanbul, Copenhagen, London, Malibu, Mexico City, Munich, Berlin, Rome, Vienna and, most recently, San Francisco—as well as those of renowned universities, among them Harvard and Oxford. The Liebieghaus Skulpturensammlung is now presenting a major expanded exhibition allowing a nuanced look at the disconcerting phenomenon of statuary polychromy. 'Gods in Colour — Golden Edition: Polychromy in Antiquity' features more than 100 objects from international museum collections such as the British Museum in London, the Museo Archeologico in Naples, the Ny Carlsberg Glyptotek in Copenhagen, the Archaologisches Institut in Gottingen, and the Skulpturensammlung der Staatlichen Kunstsammlungen Dresden, as well as the holdings of the Liebieghaus, which encompass 60 recent reconstructions but also some dating from the nineteenth century, along with 22 prints.
Credit: Liebieghaus Skulpturensammlung
“The polychromy of ancient sculpture is a fascinating phenomenon, and one that continues to surprise and astonish us despite in-depth research over the past decades and the publication of important results. The image of white marble sculpture and architecture still dominates our conception of antiquity today. The Liebieghaus Skulpturensammlung and a team of scholars around Vinzenz Brinkmann—part of an international research network—untiringly devote themselves to correcting this misconception once and for all. The expanded exhibition 'Gods in Colour—Golden Edition' at the Liebeighaus Skulpturensammlung presents the latest instructive findings as well as a resume of forty years of intensive research into the polychromy of ancient sculpture,” Dr. Philipp Demandt, the director of the Liebieghaus Skulpturensammlung, comments on the exhibition.
Under the direction of Vinzenz Brinkmann, the head of the Liebieghaus antiquity collection, an international team of scientists have been researching statuary polychromy for some forty years. Their work has inspired new research projects on the polychromy of ancient Greek and Roman sculpture at universities and museums in many countries. The primary focus of these projects is the scientific analysis of the original paints. Within this context, the history of how scholars responded to polychromy in the period from the mid-eighteenth century to World War I—and their extensive accompanying reconstruction activities—have been subjects of particular interest. Since the exhibition 'Gods in Colour' was first on view in Frankfurt in 2008, the number of reconstructions carried out by the research team has doubled, and new aspects have come under consideration, for example the polychromy of ancient bronzes. In 2016, Ulrike Koch-Brinkmann and Vinzenz Brinkmann donated the reconstructions in their possession to the Stadelstiftung.
Exhibition View [Credit: Liebieghaus Skulpturensammlung/
Norbert Miguletz]
Prof. Dr. Vinzenz Brinkmann, the curator of the exhibition and head of the Liebieghaus Department of Antiquity, explains: “Our experimental reconstructions have proven to be our chief means of gaining insights into the colouration of ancient sculpture It is only by experimenting with the ancient painting materials and techniques on three-dimensional bodies that we can develop viable solutions to previously unknown questions. Naturally, to this end we have chosen objects whose original polychromy is well preserved. It must be added that any reconstruction always represents no more than an approximation and can never reproduce the original appearance in its entirety—nor can it achieve the artistic sophistication of the original in every detail. To the contrary, the reconstructions are the results of a scientific and thus a schematic process, but one which has the great wealth of archaeological and scientific findings of four decades of research to draw on.”
Experimental reconstructions and the most recent findings on the polychromy of ancient sculpture
Experimental reconstructions and the most recent findings on the polychromy of ancient sculpture
Originally, the painted decoration of an antique sculpture not only enhanced its appearance from the aesthetic point of view and increased its lifelike impression, but also provided the ancient viewer with important information about the identity of the figure depicted. Over the past decade, research has focused increasingly on this aspect. In the process, new interpretation proposals have been developed not only in the context of large-scale Greek bronzes, but also for numerous marble sculptures. In the ancient world of the eastern Mediterranean region, the use of colour was par for the course. For the Greeks and Romans, however, the painting of sculpture was far more than superficial decoration. Rather, polychromy had means of its own for expanding the formal and narrative structure of the artwork. It was only through the dimension of colour that artists achieved the desired vibrancy of expression.
Experimental colour reconstruction, Variant B, of the so-called Cuirass Torso from the
Athenian Acropolis, plaster cast, natural pigments in egg tempera, gold leaf, h. ca. 62 cm,
2005, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project),
Frankfurt am Main, inv. St.P 686 [Credit: Liebieghaus Skulpturensammlung/
Norbert Miguletz]
The examples presented in the exhibition illustrate the different conventions that governed polychromy in the archaic (650–480 BC) and classical (480–330 BC) periods. Objects and figures were coloured in such a way as to resemble their models in nature. Where the choice of colours did not correspond to reality, it served to support the narrative content. The standing figure of a naked young man (kouros) or richly bejeweled maiden (kore) were characteristic of the Greek sculpture of the archaic period. Figures such as the Kouros of Tenea (original: Greece, ca. 560 BC, marble, Staatliche Antikensammlungen und Glyptothek, Munich) served to decorate graves and sanctuaries. The generic colour reconstruction of 2015 unites the surviving traces and details of the polychromy of several statues: the hair of the head is styled with ribbons, that on the breast and around the genitals possesses an ornamental quality, and the ear jewelry emphasizes the aristocratic origins. The colours are evidently indebted to the Egyptian tradition—the blue indicating the hair and the light brown skin colour of the skin, for example, are found on Egyptian sarcophagi and reliefs.
Ancient written sources describe the wealth of colour and form characterizing the garments of the neighbors to the north and east, which fascinated the Greek artists. The splendidly colourful costume of the so-called Persian Rider from the Acropolis (original: Athens, 500/480 BC, Acropolis Museum, Athens) is especially well preserved. The diamond pattern of the trousers in the colour reconstruction of 2008/2019 exhibits sophisticated rhythmic alternations between the strongly contrasting shades of red, blue, yellow, green and brown; the tunic features an imaginative and complex tongue ornament. This clothing style of the peoples to the north and east was used around 480 BC on the west pediment of the Temple of Aphaia on Aegina to make a kneeling archer recognizable from a distance.
Experimental colour reconstruction, Variant C, of an archer, the so-called Paris , wearing the costume of the horsemen of the neighbouring peoples to the north and east, from the west pediment of Aphaia Temple, artificial marble, natural pigments in egg tempera, lead, wood, h. 96 cm, 2019, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project),Frankfurt am Main, inv. St.P 947 [Credit: Liebieghaus Skulpturensammlung/
Norbert Miguletz]
The rich garment ornamentation of the Persian Rider and the Aeginian Archer testifies to the Greeks’ fascination with the costumes of the horse people—the Amazons, Thracians, Scythians, Trojans and Persians. Textile finds from the kurgans of the Pazyryk in the Altay Mountains now in the collection of the Hermitage in St. Petersburg show how colourful the original garments were. The third and most recent reconstruction of the archer, produced in 2019, corresponds more closely to the colour scheme and decoration techniques of these original textiles. The Greeks also adopted the use of gold sequins, examples of which have survived well intact on Scythian fabrics.
The decorative elements of the garments played a key role in helping ancient viewers understand the figures depicted, as is illustrated in the exhibition by three reconstructions of female figures from archaic-period Athens: the funerary statue of Phrasikleia (original: Greece, ca. 540 BC, marble, National Archaeological Museum, Athens), the so-called Chios Kore (original: Athens, ca. 520/500 BC, marble, Acropolis Museum, Athens) and the so-called Peplos Kore (original: Athens, ca. 520 BC, marble, Acropolis Museum, Athens).
Experimental colour reconstruction of the funerary figure of Phrasikleia (detail), stucco
marble on PMMA, natural pigments in egg tempera, lead tin foil, gold leaf, garnet,
tourmaline, labradorite, gum arabic (iris), h. 200 cm, 2010/2019, Liebieghaus
Skulpturensammlung, Frankfurt am Main (on loan from the Ludwig-Maximilians-
Universitat, Munich, Leibniz Prize O. Primavesi 2007), inv. LGLH Z01
[Credit: Liebieghaus Skulpturensammlung/Norbert Miguletz]
The decorative elements of the garments played a key role in helping ancient viewers understand the figures depicted, as is illustrated in the exhibition by three reconstructions of female figures from archaic-period Athens: the funerary statue of Phrasikleia (original: Greece, ca. 540 BC, marble, National Archaeological Museum, Athens), the so-called Chios Kore (original: Athens, ca. 520/500 BC, marble, Acropolis Museum, Athens) and the so-called Peplos Kore (original: Athens, ca. 520 BC, marble, Acropolis Museum, Athens).
Experimental colour reconstruction of the funerary figure of Phrasikleia (detail), stucco
marble on PMMA, natural pigments in egg tempera, lead tin foil, gold leaf, garnet,
tourmaline, labradorite, gum arabic (iris), h. 200 cm, 2010/2019, Liebieghaus
Skulpturensammlung, Frankfurt am Main (on loan from the Ludwig-Maximilians-
Universitat, Munich, Leibniz Prize O. Primavesi 2007), inv. LGLH Z01
[Credit: Liebieghaus Skulpturensammlung/Norbert Miguletz]
Dating from 2010/2019, the reconstruction of the Phrasikleia represents a young woman wearing sandals, a long, richly patterned dress, jewelry, and on her head a floral crown consisting of lotus buds and blossoms. The bright red gown is adorned with a red and yellow scattered pattern and decorative borders. The rosette petals of the appliques are made of gold and lead tin foil. The 2012 reconstruction of the so-called Chios Kore depicts a girl in a long skirt and a kind of undergarment made of a fine fabric forming multiple folds. The Swiss artist Emile Gillieron already painted a watercolour documenting the vestiges of vibrant blue and red paint on the original statue when it was excavated at the end of the nineteenth century. Investigations carried out in 2010 did in fact bring the pigments azurite and vermilion to light. The modern researchers moreover found the lead yellow and light-yellow ocher their predecessors had observed back in 1904. Whereas the costume of the so-called Chios Kore thus offers direct insights into the fashions of the late sixth century BC, the decorative pattern and lotus flower ornament of the Phrasikleia make symbolic reference to the cycle of life and death.
The so-called Peplos Kore wears a tight-fitting outer garment without folds over an undergarment. The archaeologists equated the former with the so-called peplos (a women’s dress style in ancient Greece) and erroneously called the figure the Peplos Kore. In fact, however, the garments—and with them the figure’s true significance—only became clear with the aid of the polychromy. Recent research has enabled a complete understanding of the figure’s complex colour scheme. The exhibition presents a new, revised reconstruction of the socalled Peplos Kore. Indications of the steps preceding the painting process have now been discovered, as have weathering traces of the paint. The polychromy— in particular the animalfrieze garment (ependytes), a crown of feathers meanwhile lost (vestiges of its mounts are still visible on the head), the weapons and the immobile body—gives the figure its true identity. The statue mistakenly designated the Peplos Kore is actually a marble representation of a xoanon, an ancient wooden cult image of the goddess Artemis.
Experimental colour reconstruction, Variant B, of the so-called Peplos Kore from the Athenian Acropolis, stucco marble on plaster cast, natural pigments in egg tempera, crown and weapons made of gilded and silvered wood, h. 136 cm, 2005, reworked in 2019, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project), Frankfurt
am Main, inv. St.P 687 [Credit: Liebieghaus Skulpturensammlung/
Norbert Miguletz]
Sculptures also received a polychrome finish in the Hellenistic period (330–30 BC). In several cases, the researchers have been able to prove that the naked areas of the human figure were painted with a reddish-brown or light brown hue. As we have learned from the reliefs of the so-called Alexander Sarcophagus from the royal necropolis of Sidon (original: Lebanon, ca. 320 BC, Archaeological Museum, Istanbul), the colour scheme was determined to a decisive degree by the contrasts between radiant blue, intense red and golden ocher.
Gilding played an extremely important role, occupying ever larger areas of the surfaces and serving as a painting surface itself. The precious material was used again and again to represent jewelry on humans and animals alike. Gold and silver plating and coloured stone inlays enhanced the splendor and light reflection of the ancient works. Remnants of leaf gilding on garment hems of Greek sculptures give rise to speculations that the edges of ancient garment fabrics were piped with gold threads. The traces of gold on the marble figure of the so-called Small Herculaneum Woman are an example. The late classical original of this work no longer exists, but dozens of late Greek and Roman replicas have come down to us.
Experimental study of the polychromy of the so-called Treu Head, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project in cooperation with the British Museum, London), Frankfurt am Main[Credit: Liebieghaus Skulpturensammlung/Norbert Miguletz]
The figure of a young woman sports a hairstyle made up of several braids woven together in a tight knot. She is in the act of pulling her mantle tightly around her with both hands. The colour reconstruction of 2019 is based on examinations of the polychromy on a replica found in Delos in 1894 (original with polychromy: Delos, 2nd century BC, marble, National Archaeological Museum, Athens) and uses the cast of the eponymous replica discovered in Herculaneum in 1706 (original from which the cast was made: Herculaneum, 1st century AD, marble, Staatliche Kunstsammlungen Dresden, Skulpturensammlung). The reconstruction combines the traces of polychromy documented since the excavation. Particularly the colour scheme of the mantle reveals the sculptor’s intent: the fine greenish fabric is transparent everywhere where the mantle stretches across the body’s curves and protrusions.
One section of the exhibition revolves around a three-year research project carried out in cooperation with scholars from Frankfurt’s Goethe University and concluded in January 2020. The aim was the development of physical models as well as an interactive digital publication for communicating the research and reconstruction of the polychromy of ancient Greek sculpture to specialists, students and a broader public. A statue from the Frankfurt Group of Muses was chosen as the object of this case study. This figure presumably comes from the sacred island of Delos dedicated to Artemis and Apollo (Standing Muse from the Thermal Baths of Agnano, originally from Delos, 2nd century BC). It bears a wealth of information—however difficult to see—about its original polychromy. The researchers compared it to a marble statue of the Small Herculaneum Woman type which was erected on Delos around the same time (ca. 120–100 BC) and whose polychromy has survived in better condition with a marble statue of the Small Herculaneum Woman type which was erected on Delos around the same time (ca. 120–100 BC), and whose polychromy has survived in better condition.
Statue of the Muse in downscaled form with depiction of vestiges of paint (left) and downscaled Muse, Variant D (right), stucco marble on PMMA, natural pigments in egg tempera, gold leaf (right), h. 39 cm, 2019, Liebieghaus Skulpturensammlung (Liebieghaus Polychromy Research Project), Frankfurt am Main, inv. LG 227 and 226 (on loan from the Goethe University Frankfurt, Institute of Archaeological Sciences, dept. I: Classical Archaeology, cast collection)
[Credit: Liebieghaus Skulpturensammlung/Norbert Miguletz]
Since the first excavations in the eighteenth century, the representation of naked skin has presented scholars with difficulties. Apart from the disapproval brought about by the then modern sense of aesthetics, the generally poor state of the skin colour has played a decisive role in scholars’ neglect of the matter. The exhibition devotes itself to this topic in colour reconstructions realized according to the latest scientific findings, for example those of the socalled Treu Head (original: Rome, 2nd century AD, marble, The British Museum, London) and the Portrait of the Roman Emperor Caligula (original: AD 37–41, Ny Carlsberg Glyptotek, Copenhagen).
New examinations of the Treu Head—a depiction of a female deity—at the British Museum encompassed a large number of paint analyses that yielded precise information about the painting technique and the pigments used. For the representation of the skin, the ancient artist employed calcite mixed with not only red and yellow ferric oxides but also a small amount of Egyptian blue, which lends the skin a somewhat cooler touch. As is also the case with the Portrait of the Roman Emperor Caligula, pink madder lake was used for the space between the lips and the corners of the eyes. The Treu Head bears key significance in the current polychromy discussion. Evidently the light female skin was characterized with the aid of paint, while the precious marble served merely as the support material.
Exhibition View [Credit: Liebieghaus Skulpturensammlung/Norbert Miguletz]
To date, it has not been possible to provide a conclusive answer to the question of how the polychrome enhancement of bronze statues related to marble polychromy. The research team undertook extensive initial approximations of the original appearance of bronzes, with the famous Warriors of Riace (originals: Greece, 5th century BC, Museo Archeologico Nazionale, Reggio di Calabria) and the original Bronze Sculptures from the Roman Quirinal Hill (originals: Greece, end of 4th or 3rd century BC, Museo Nazionale Romano, Rome) as examples. In the reconstructions of the two Riace Warriors, the illusion of suntanned skin was achieved with numerous layers of a much-diluted bitumen lacquer containing a bit of red pigment.
The extremely lifelike impression is brought about by the elaborately made stone inlays for the eyes, nipples inlaid in copper, and lips and teeth covered with silver sheeting. Within the framework of the scientific investigations and recasts of the originals as well as the making of the reconstructions in the years 2012–2016, Warrior A turned out to be a portrayal of Erechtheus, son of the goddess Athena, and Warrior B of the Thracian king Eumolpos, son of Poseidon, god of the sea. The examinations of the so-called Quirinal Bronzes in the same years (2012–2018) confirmed the conjecture that the two figures represent heroes from the Greek Argonaut saga: Amycus, king of the Bebryces, and Polyceuces, an Argonaut and son of Zeus, who encounter one another in a boxing match.
Research network and latest analysis techniques
Over the past decades, information about the original ancient marble sculptures has been obtained with the aid of scientific methods, and has in turn served as the basis for the production of experimental reconstructions. The participating scholars have also reevaluated ancient written sources on statuary polychromy. Apart from precisely made plaster casts, copies of ancient sculptures have been produced in marble and, most recently, as 3D prints. These copies have then received polychrome finishes using authentic historical painting materials. In 2020, the long series of three-dimensional physical reconstructions is entering its thirtieth year.
Ulrike Koch-Brinkmann and Vinzenz Brinkmann undertook their first experimental colour reconstructions on copies of originals back in 1989. This work was based on their own scientific investigations, but also and above all on the results of numerous research projects implemented on the international level. At important museums such as the British Museum in London, the Louvre in Paris, the Acropolis Museum in Athens, the Pergamonmuseum in Berlin, the Ny Carlsberg Glyptotek in Copenhagen and the Metropolitan Museum in New York, archaeologists, conservators and scientists have worked together successfully to further the research into the polychromy of their own respective holdings. What is more, a large number of extensive independent research and dissertation projects have been realized.
Methods of scientific investigation have been developed further and refined. The visibleinduced infrared luminescence (VIL) imagining technique has been developed, for example, and thermographic imaging methods optimized. The researchers have also profited extensively from the new development of portable, non-invasive analysis techniques with whose aid myriad colour measurements have been carried out on the objects. Over the past years, this has led to a tremendous increase in knowledge about the pigments used in antiquity. X-ray fluorescence, a portable method for the nuanced ascertainment of a material’s metal content, has enabled the rapid identification of a large number of inorganic pigments without taking samples. UV-VIS absorption spectroscopy is capable of identifying both pigments and colourants such as plant dyes. It thus comes into play for the determination of nearly all inorganic, but also organic materials.
The measurement, which amounts to an optical fingerprint, also encompasses the physical ascertainment of the antique material’s hue. Particularly in the context of reconstructing ancient polychromy, this chromatic definition permits an extremely precise approximation of the original appearance. Based on these new technical means of making light visible, but also the scientific analysis of pigment traces, the team around Vinzenz Brinkmann have arrived at detailed results and more precise forms of communication over the course of many years of work. For their work they have received support from the German Research Foundation, the Stiftung Archaologie, and the Leibniz Prize project of Prof. Dr. Oliver Primavesi, from Salvatore Settis, the government of the Republic of Italy, the Stadelscher Museums-Verein and, most recently, the German Federal Ministry of Education and Research as well as the Goethe University of Frankfurt am Main with Prof. Dr. Dirk Wicke.
'Gods in Colour — Golden Edition' will run until August 30, 2020]
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