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🔴 ☀️ **The age of the Sun depends on when you look at it**

"_It has established that the age of the Sun, as determined by helioseismology, varies significantly according to the level of activity of the solar cycle. To give an order of magnitude, the Sun is around 4.6 billion years old, and variations of up to 300 million years have been observed between solar minima._"

🔗 unige.ch/medias/en/2024/lage-d

@science

🔴 🇬🇧 **What is a blue supermoon and when will it appear in UK skies?**

"_Relatively rare lunar phenomenon of a blue moon combined with supermoon will occur in full for three days_"

🔗 theguardian.com/science/articl

@science

🔴 🎥 **Mpox: First case of contagious variant outside Africa reported**

"_The disease - previously known as monkeypox - has been largely contained in the Democratic Republic of Congo where it's endemic. It now appears to have spread through Eastern Africa and into Scandinavia._"

length: seven minutes and forty seconds.

🔗 youtu.be/W-NHWDg5yxk

@science

🔴 💧 **Mapping safe drinking water use in low- and middle-income countries**

_Our results emphasize that access to an improved drinking water source does not always provide safe drinking water as <u>almost half of the LMIC populations (48%) were estimated to be exposed to fecal contamination in their primary drinking water source</u>. Our predictions show that more than half of the populations of Oceania, sub–Saharan Africa, southeastern Asia, and Latin America and the Caribbean may be exposed to contaminated drinking water (fig. S9)._

Esther E. Greenwood et al., Mapping safe drinking water use in low- and middle-income countries. Science 385, 784-790 (2024). DOI: doi.org/10.1126/science.adh957

@science

🔴 🌡️ **What is the hottest temperature humans can survive? These labs are redefining the limit**

"_As climate change heats the Earth, blistering days have become a regular feature of weather reports worldwide. Last month, the record for the world’s hottest day was broken twice, and the United Nations made a global call for action on extreme heat, to help vulnerable people, workers and economies to cope using science. Around 70% of the global workforce — 2.4 billion people — are now at high risk of extreme heat, it said._"

🔗 doi.org/10.1038/d41586-024-024

@science @climatechange

🔴 🎥 **Clouds and climate change**

"_Meet cloud scientist Edward Gryspeerdt and find out why clouds aren't just fluffy shapes in the sky ⛅_"

length: seven minutes and six seconds.

🔗 youtu.be/A9xAG601dG4

@physics @climatechange @science

🔴 **How bread dough gave rise to civilisation**

"_A major international study has explained how bread wheat helped to transform the ancient world on its path to becoming the iconic crop that today sustains a global population of eight billion._"

🔗 jic.ac.uk/news/how-bread-dough

@science

🔴 **Transmission of social bias through observational learning**

"_Across six experiments, we demonstrated that group preferences can be acquired by merely observing the behavior of a prejudiced actor toward members of a group. This effect emerged despite observers’ lack of stereotype knowledge, unawareness of demonstrator preferences, the lack of actual group differences in players’ feedback, and the use of financial incentives for accuracy, suggesting that observational learning constitutes a potent and persistent mode of prejudice transmission._"

David T. Schultner et al., Transmission of social bias through observational learning. Sci. Adv.10, eadk2030 (2024). DOI: doi.org/10.1126/sciadv.adk2030.

@psychology @science

🔴 🇦🇺 **Cosmos magazine’s AI-generated articles are bad for trust in science**

"_Rolling out an AI experiment with a lack of transparency is at best ignorant, and at worst dangerous_"

theguardian.com/media/commenti

@ai @science

🔴 **Mathematicians Reinvent the Wheel in Higher Dimensions to Solve Decades-Old Geometry Problem**

"_A new mathematical technique shows how to build small objects in any dimension that roll like a wheel, expanding our understanding of higher dimensional space_"

🔗 scientificamerican.com/article

@science

🔴 🇹🇷 **‘World’s oldest calendar’ found carved onto ancient monument**

"_The timekeeping system, unearthed at the Gobekli Tepe site in mountains of Anatolia in Turkey, suggests people were accurately recording dates 10,000 years before it was documented in Greece in 150 BC._"

🔗 independent.co.uk/news/science

@science

🔴 **Scientists solve mystery of some of Earth’s most dramatic landscapes**

"_Experts have found that powerful waves deep within the Earth triggered when tectonic plates broke apart have caused continents to force the land up, creating giant plateaus._"

🔗 independent.co.uk/news/science

@science

🔴 🇦🇺 **Highest ocean heat in four centuries places Great Barrier Reef in danger**

"_Climate model analysis confirms that human influence on the climate system is responsible for the rapid warming in recent decades. This attribution, together with the recent ocean temperature extremes, post-1900 warming trend and observed mass coral bleaching, shows that the existential threat to the GBR ecosystem from anthropogenic climate change is now realized._"

Henley, B.J., McGregor, H.V., King, A.D. et al. Highest ocean heat in four centuries places Great Barrier Reef in danger. Nature 632, 320–326 (2024). doi.org/10.1038/s41586-024-076

@science @climatechange @environment

🔴 **Multi-proxy bioarchaeological analysis of skeletal remains shows genetic discontinuity in a Medieval Sicilian community**

"_Isotopic analyses indicated individuals enjoyed a similar diet with little evidence for extensive mobility, however, the genetic analyses indicate that the Muslim and Christian individuals were not only separated by the location of their burials but also by their genetic heritage with no evidence of kinship between the two communities._"

Monnereau, A. et al. (2024) 'Multi-proxy bioarchaeological analysis of skeletal remains shows genetic discontinuity in a Medieval Sicilian community,' Royal Society Open Science, 11(7). doi.org/10.1098/rsos.240436.

@science @archaeodons

🔴 **Did an ancient human relative really bury its dead?**

"_Critics challenge explosive claim about Homo naledi, with implications for both human evolution and new models of scientific publishing_"

🔗 science.org/content/article/an

@archaeodons @science

🔴 **Microplastics and nanoplastics have been found throughout the human body – how worried should we be?**

"_In recent years, microplastics and nanoplastics have been found in the brains, hearts and lungs of humans. They have been discovered in the arteries of people with arterial disease, suggesting they may be a potential risk factor for cardiovascular disease. And they have been detected in breast milk, the placenta and, most recently, penises._"

🔗 theconversation.com/microplast

@science @biology

🔴 📷 **The world’s most expensive dinosaur and more — July’s best science images**

"_The month’s sharpest science shots, selected by Nature’s photo team._"

nature.com/immersive/d41586-02

@science

🔴 📖 **The Diagrammatics of 'Race' Visualizing Human Relatedness in the History of Physical, Evolutionary, and Genetic Anthropology, ca. 1770-2020**

"_The Diagrammatics of 'Race' concentrates on Western projects from the late 1700s into the present to diagrammatically define humanity, subdividing and ordering it, including the concomitant endeavors to acquire representative samples―bones, blood, or DNA―from all over the world._"

doi.org/10.11647/OBP.0396

@anthropology @bookstodon @science (89)

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🔴 **Analyses of Johannes Kepler's Sunspot Drawings in 1607: A Revised Scenario for the Solar Cycles in the Early 17th Century**

"_Here, we make use of Kepler's sunspot drawings and descriptive texts to identify his observational sites and time stamps. We have deprojected his sunspot drawings and compared the reported positions with our calculations of the inclination of the solar equator as seen from these sites at that time._"

Hayakawa, H. et al. (2024) 'Analyses of Johannes Kepler’s Sunspot Drawings in 1607: A revised scenario for the solar cycles in the early 17th century,' The Astrophysical Journal Letters, 970(2), p. L31. doi.org/10.3847/2041-8213/ad57.

@science @astronomy

🔴 **All roads lead to (New) Rome: Byzantine astronomy and geography in a rapidly changing world**

"_This comprehensive review of Byzantine geographic achievements -- supported by a review of astronomical developments pertaining to position determination on Earth -- aims to demonstrate why and how, when Constantinople fell to the Turks in 1453 and the Ottoman Empire commenced, Byzantine astronomers had become the central axis in an extensive network of Christians, Muslims and Jews._"

Richard, D.G. (2024) All roads lead to (New) Rome: Byzantine astronomy and geography in a rapidly changing world. arxiv.org/abs/2407.16285v1.

@histodon @histodons @geography

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