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🔴 🇳🇴 Corroborating written history with ancient DNA: The case of the Well-man described in an Old Norse saga

"Here we apply palaeogenomic analysis to human remains excavated from a medieval well at the ruins of Sverresborg Castle in central Norway. In Sverris Saga, the Old Norse saga of King Sverre Sigurdsson, one passage details a 1197-CE raid on the castle and mentions a dead man thrown into the well. Radiocarbon dating supports that these are that individual’s remains."

Ellegaard, M.R. et al. (2024) 'Corroborating written history with ancient DNA: The case of the Well-man described in an Old Norse saga,' iScience, p. 111076. doi.org/10.1016/j.isci.2024.11.

@science @anthropology @archaeodons

🔴 Forced Changes Only: A New Take on the Law of Inertia

"The thesis of this paper is that such paraphrases of Newton’s First Law are all incorrect, because the law, as Newton stated it, is not just a description of the motion of force-free bodies. It is in fact a stronger, more general principle, constraining the motion of all bodies."

Hoek, D. (2023) ‘Forced Changes Only: A New Take on the Law of Inertia’, Philosophy of Science, 90(1), pp. 60–76. doi: doi.org/10.1017/psa.2021.38.

@philosophy @science

🔴 Revealed: International ‘race science’ network secretly funded by US tech boss

"In one conversation, HDF’s organiser was recorded discussing “remigration” – a euphemism for the mass removal of ethnic minorities – saying: “You’ve just got to pay people to go home.” The term has become a buzzword on the hard right, with Donald Trump using it in September to describe his own policies in a post on X that has been viewed 56m times."

🔗 theguardian.com/world/2024/oct

@science @biology

🔴 Language at a glance: How our brains grasp linguistic structure from parallel visual input

"Our results indicate that the left temporal cortex performs a rough sketch of syntactic structure starting as early as 125 ms after stimulus onset. This is faster than most estimates of even single-word visual perception (14), suggesting that the speed arises specifically from the parallel availability of the full sentence, with each word supporting the recognition of the other ones. This allows for rapid matching of the stimulus to top-down knowledge of sentence structure. Just like you can recognize a cup very quickly if you lay your full hand on it, feeling many parts simultaneously (15), you are able to understand a sentence very quickly if you lay your eyes on the full sentence all at once."

Jacqueline Fallon, Liina Pylkkänen, Language at a glance: How our brains grasp linguistic structure from parallel visual input. Sci. Adv. 10, eadr9951 (2024). DOI: doi.org/10.1126/sciadv.adr9951

@science @psychology

🔴 🧠 The hidden role of air pollution in cognitive decline

"PM2.5 are fine airborne particles small enough to enter the lungs and even the bloodstream, posing significant health risks. Long-term exposure has been linked to neurodegenerative diseases like Alzheimer’s and Parkinson’s, resulting in air pollution being listed as one of the modifiable risk factors in the recent report of the Lancet commision on dementia prevention, intervention and care. However, the mechanisms through which PM2.5 affects cognitive function remain poorly understood."

🔗 uni.lu/lcsb-en/news/hidden-rol

@science

🔴 How the Human Brain Contends With the Strangeness of Zero

"To use zero in calculations, mathematicians had to establish all sorts of rules. You can’t divide any other number by zero, but you can divide zero by any other number. A nonzero number to the power of zero gives you one; zero to a power of a nonzero number gives you zero, but zero to a power of zero gives you a calculator error — and a headache."

🔗 quantamagazine.org/how-the-hum

@science @biology

🔴 🇮🇪 Three letters, one number, a knife and a stone bridge: how a graffitied equation changed mathematical history

"Yet Hamilton’s revelation changed the way mathematicians represent information. And this, in turn, made myriad technical applications simpler – from calculating forces when designing a bridge, an MRI machine or a wind turbine, to programming search engines and orienting a rover on Mars."

🔗 theconversation.com/three-lett

@science

🔴 X-ray evidence of Black maths scholar portrait reveals snubbed genius

"It has long been mistaken for a satirical painting that mocks its Black subject for having the temerity to pretend to be a Georgian gentleman and scholar. But it is now thought to have been commissioned in 1760 by Williams himself to immortalise his brilliance as a trailblazing astronomer who, the clues in the painting suggest, successfully managed to compute and witness the trajectory of Halley’s comet over Jamaica in 1759."

🔗 theguardian.com/artanddesign/2

@histodon @histodons @science

🔴 🎥 Every Other Video About Color is Wrong

"This video is going to explore deeper than all those other videos. It’s going to explain that color is the result of light interacting with electrons … most of the time."

length: twenty one minutes and thirty three seconds.

🔗 youtu.be/6xgBSQwqAuE

@science @chemistry

🔴 🇯🇵 Genetic analysis of a Yayoi individual from the Doigahama site provides insights into the origins of immigrants to the Japanese Archipelago

"One of the important findings of this study is that, in all analyses, among modern populations, the Korean population exhibited more genetic similarity to the Doigahama Yayoi individual than any other East Asian populations, except for the Japanese. This suggests that immigrants to the Japanese Archipelago during the Yayoi period primarily originated from the Korean Peninsula."

Kim, J., Mizuno, F., Matsushita, T. et al. Genetic analysis of a Yayoi individual from the Doigahama site provides insights into the origins of immigrants to the Japanese Archipelago. J Hum Genet (2024). nature.com/articles/s10038-024.

@science @biology @anthropology

🔴 🎥 Biology's most controversial photograph

length: sixteen minutes and forty two seconds.

🔗 youtu.be/i7Xir9ogmhY

@science @biology

🔴 🇪🇸 DNA study confirms Christopher Columbus’s remains are entombed in Seville

"On Thursday, after two decades of DNA testing and research, the forensic medical expert José Antonio Lorente said the incomplete set of remains in Seville Cathedral were indeed those of Columbus."

🔗 theguardian.com/world/2024/oct

@science @histodon @histodons

🔴 Earth’s ‘vital signs’ show humanity’s future in balance, say climate experts

“Climate change is a glaring symptom of a deeper systemic issue: ecological overshoot, [which] is an inherently unstable state that cannot persist indefinitely. As the risk of Earth’s climate system switching to a catastrophic state rises, more and more scientists have begun to research the possibility of societal collapse. Even in the absence of global collapse, climate change could cause many millions of additional deaths by 2050. We need bold, transformative change.”

🔗 theguardian.com/environment/20

@science @climatechange

🔴 🎥 How are holograms possible?

"3d scenes on 2d film, and a diffraction lesson along the way."

length: forty six minutes and twenty three minutes.

youtu.be/EmKQsSDlaa4

@science

🔴 🎥 How are holograms possible?

"3d scenes on 2d film, and a diffraction lesson along the way."

length: forty six minutes and twenty three minutes.

youtu.be/EmKQsSDlaa4

@science

⭐ Experts say these species will be brought back from dead before 2028 – with help from Paris Hilton

"But Ben Lamm, the company’s chief executive, said it is “highly likely” the dodo and the Tasmanian tiger could potentially pip the mammoth – which went extinct around 4,000 years ago – to the post within the next three years."

independent.co.uk/news/science

⭐ An Instrument of Social Control: The Scientization of Drunkenness

"Theories of alcoholism came to be used as instruments of social control. Medical discourses influenced anti-alcohol movements and later supported the tendency to make “drunkards” invisible by committing them to drinkers’ asylums."

historyofknowledge.hypotheses.

@histodon @histodons

🔴 **Scientists grow ‘lost tree’ mentioned in Bible using mysterious 1,000-year-old seed**

"_Researchers suspected the “Sheba” tree to be a candidate for the “Judean Balsam” or “Balm of Judea”, which was cultivated exclusively in the desert region of southern Levant during Biblical times._"

🔗 **independent.co.uk/news/science**

@science @archaeodons

🟡 **<font color="yellow">Lord Kelvin: how the 19th century scientist combined research and innovation to change the world</font>**

"_Thomson’s lifelong talent for inventing ingenious scientific instruments secured him 70 patents, enabled dozens of scientific breakthroughs and made him a highly successful entrepreneur._"

🔗 **theconversation.com/lord-kelvi**

@science

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