‘A lot of our images of prehistoric people are just too big’… Chuang Zhao
This is an extract from Our Human Story, our newsletter about the revolution in archaeology. Sign up to receive it in your inbox every month.
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When you think of a South American rainforest, you probably don't imagine biting winds, heavy frosts and freezing temperatures. But in the mountains of southern Brazil, that's exactly what you can find. On this highland plateau, far from Amazonia in the country's coldest region, grows one of the world's most intriguing ecosystems.
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Shizhi Zhang, Linda Westman and Vanesa Castán Broto have published a paper in Political Geography that explores how classical Chinese political philosophy can contribute to contemporary debates on environmental justice (EJ) theory.
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With international football facing increasing criticism over its carbon footprint, University of Bath students are working with Bath City FC to show how community football could help tackle climate change.
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Beta-amyloid forms plaques in the brain (seen in yellow) that play a role in Alzheimer’s disease JUAN GAERTNER/SCIENCE PHOTO LIBRARY/Alamy
A cognitive “speed training” game that cuts dementia risk by 25 per cent alters levels of beta-amyloid, a protein that clogs up the brain in Alzheimer’s disease, in men, but not in women.
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Our universe is known to be remarkably homogeneous and isotropic. This essentially means that matter is distributed evenly throughout the universe and that it looks almost the same in all directions.
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Pyrite, an iron sulfide ore, is often known as fool's gold because its shiny metallic luster and pale brass-yellow color can easily fool the untrained eye into mistaking it for real gold. This time, however, 360 kilometers (220 miles) south of Tokyo, scientists have uncovered invisible gold within pyrite structures found deep beneath the ocean at the Higashi-Aogashima Knoll Caldera hydrothermal field.
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Nature is beautiful, powerful and essential. But nature is not always gentle. The same biological world that gives rise to forests, coral reefs and human life also produces infections, cancer, genetic disease, crop blights and toxins. Natural processes can heal, sustain and inspire, but they can also destroy.
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Why do some coral reefs weather marine heat waves better than others? A new study published in Scientific Reports shows that the answer may lie not only in local ocean conditions, but also in climate patterns that span entire ocean basins. By combining long-term ocean observations with chemical records preserved in coral skeletons, the researchers reveal how large-scale climate oscillations regulate the natural cooling that can help protect coral reefs during marine heat waves. First author Dr. Hana Camelia and Dr. Thomas Felis from MARUM—Center for Marine Environmental Sciences at the University of Bremen led the study.
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More than 50 years ago, physicist Sir Roger Penrose proposed a remarkable idea: under the right conditions, it might be possible to extract energy from a rapidly spinning black hole. In his concept, a particle entering the black hole's ergosphere, a region where spacetime is dragged along by the object's rotation, could split into two. One fragment would fall into the black hole while the other escaped carrying away more energy than the original particle. Later, physicist Yakov Zel'dovich expanded on this concept, predicting that waves interacting with an object rotating fast enough could also gain energy and become amplified.
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