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Michaelquilk

20 Nov 2024 - 09:05 pm

Earth ring theory may shed light on an unexplained ancient climate event, scientists say
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Famously known for its extensive ring system, Saturn is one of four planets in our solar system that have the distinctive feature. And now, scientists hypothesize that Earth may have sported its own ring some 466 million years ago.

During the Ordovician Period, a time of significant changes for Earth’s life-forms, plate tectonics and climate, the planet experienced a peak in meteorite strikes. Nearly two dozen impact craters known to occur during this time were all within 30 degrees of Earth’s equator, signaling that the meteoroids may have rained down from a rocky ring around the planet, according to a study published September 12 in the journal Earth and Planetary Science Letters.
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“It’s statistically unusual that you would get 21 craters all relatively close to the equator. It shouldn’t happen. They should be randomly distributed,” said lead author Andrew Tomkins, a geologist and professor of Earth and planetary sciences at Monash University in Melbourne, Australia.

Not only does the new hypothesis shed light on the origins of the spike in meteorite impacts, but it also may provide an answer to a previously unexplained event: A global deep freeze, one of the coldest climate events in Earth’s history, may have been a result of the ring’s shadow.

Scientists are hoping to find out more about the possible ring. It could help answer the mysteries of Earth’s history as well as pose new questions about the influence an ancient ring could have had on evolutionary development, Tomkins said.

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20 Nov 2024 - 01:09 pm

Scientists say skeletal remains found in castle well belong to figure from 800-year-old saga
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Researchers have connected the identity of skeletal remains found in a well at Norway’s Sverresborg castle to a passage in a centuries-old Norse text.

The 800-year-old Sverris saga, which follows the story of the real-life King Sverre Sigurdsson, includes the tossing of the body of a dead man — later known as “Well-man” — down a well during a military raid in central Norway in 1197.
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It’s likely, according to the text, that raiders lobbed the body into the well to poison the main water source for locals, but little else is said about the man or who he was in the saga.

Researchers initially uncovered the bones in the castle’s well in 1938, but they were only able to carry out a visual analysis at the time. Now, scientists have an array of analytical techniques at their disposal, including genetic sequencing and radiocarbon dating.

A new study on the remains, published Friday in the Cell Press journal iScience, reveals unprecedented insights into Well-man’s appearance based on in-depth research on samples of his teeth.

“This is the first time that a person described in these historical texts has actually been found,” said study coauthor Michael D. Martin, a professor in the department of natural history at the Norwegian University of Science and Technology’s University Museum in Trondheim, in a statement.

“There are a lot of these medieval and ancient remains all around Europe, and they’re increasingly being studied using genomic methods.”

The findings not only shed fresh light on what Well-man looked like but also who he was, with a surprising twist about how he ended up in a Norse saga.

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20 Nov 2024 - 11:08 am

Scientists say skeletal remains found in castle well belong to figure from 800-year-old saga
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Researchers have connected the identity of skeletal remains found in a well at Norway’s Sverresborg castle to a passage in a centuries-old Norse text.

The 800-year-old Sverris saga, which follows the story of the real-life King Sverre Sigurdsson, includes the tossing of the body of a dead man — later known as “Well-man” — down a well during a military raid in central Norway in 1197.
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It’s likely, according to the text, that raiders lobbed the body into the well to poison the main water source for locals, but little else is said about the man or who he was in the saga.

Researchers initially uncovered the bones in the castle’s well in 1938, but they were only able to carry out a visual analysis at the time. Now, scientists have an array of analytical techniques at their disposal, including genetic sequencing and radiocarbon dating.

A new study on the remains, published Friday in the Cell Press journal iScience, reveals unprecedented insights into Well-man’s appearance based on in-depth research on samples of his teeth.

“This is the first time that a person described in these historical texts has actually been found,” said study coauthor Michael D. Martin, a professor in the department of natural history at the Norwegian University of Science and Technology’s University Museum in Trondheim, in a statement.

“There are a lot of these medieval and ancient remains all around Europe, and they’re increasingly being studied using genomic methods.”

The findings not only shed fresh light on what Well-man looked like but also who he was, with a surprising twist about how he ended up in a Norse saga.

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20 Nov 2024 - 09:45 am

Scientists say skeletal remains found in castle well belong to figure from 800-year-old saga
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Researchers have connected the identity of skeletal remains found in a well at Norway’s Sverresborg castle to a passage in a centuries-old Norse text.

The 800-year-old Sverris saga, which follows the story of the real-life King Sverre Sigurdsson, includes the tossing of the body of a dead man — later known as “Well-man” — down a well during a military raid in central Norway in 1197.
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It’s likely, according to the text, that raiders lobbed the body into the well to poison the main water source for locals, but little else is said about the man or who he was in the saga.

Researchers initially uncovered the bones in the castle’s well in 1938, but they were only able to carry out a visual analysis at the time. Now, scientists have an array of analytical techniques at their disposal, including genetic sequencing and radiocarbon dating.

A new study on the remains, published Friday in the Cell Press journal iScience, reveals unprecedented insights into Well-man’s appearance based on in-depth research on samples of his teeth.

“This is the first time that a person described in these historical texts has actually been found,” said study coauthor Michael D. Martin, a professor in the department of natural history at the Norwegian University of Science and Technology’s University Museum in Trondheim, in a statement.

“There are a lot of these medieval and ancient remains all around Europe, and they’re increasingly being studied using genomic methods.”

The findings not only shed fresh light on what Well-man looked like but also who he was, with a surprising twist about how he ended up in a Norse saga.

Georgerer

20 Nov 2024 - 09:38 am

Tiny house with elaborate – and erotic – frescoes unearthed at Pompeii
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Archaeologists have uncovered a tiny house in Pompeii that is filled with elaborate – and sometimes erotic – frescoes, further revealing the ornate way in which Romans decorated their homes.

Situated in the central district of the ancient city, the house is smaller than normal and unusually lacks the open central courtyard – known as an atrium – that is typical of Roman architecture, the Archaeological Park of Pompeii, which oversees the site, said in a statement Thursday.
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This change could have occurred due to shifting trends in Roman - and particularly Pompeian - society, during the first century AD, archaeologists said.

Pompeii was destroyed by the eruption of Mount Vesuvius in AD 79 when its buildings and thousands of inhabitants were buried beneath layers of ash and pumice. This coating perfectly preserved the city for millennia, making it one of the most important archaeological sites in the world as it offers an unprecedented insight into Roman daily life.
This latest discovery spotlights the ornate decorations that rich Romans enjoyed in their homes – several frescoes depict mythical scenes and others are decorated with plant and animal motifs on a white background.

One small square painting set against a blue-painted wall depicts intercourse between a satyr and a nymph, while another shows Hippolytus, son of the mythical Greek king Theseus, and his stepmother Phaedra who fell in love with him before killing herself when he rejected her in disgust.