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Some people are morning larks. Others are night owls. But not everybody falls neatly into those two categories, scientists say – and a new study suggests there are actually multiple distinct ‘chronotypes’ that define people’s wakefulness and rest. Chronotypes are the behavioural manifestations of the circadian rhythms we experience throughout the day and the night.
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Wherever you have fluid, there you can also find vortex rings. Now, scientists have found vortex rings somewhere fascinating – inside a tiny pillar made of a magnetic material, the gadolinium-cobalt intermetallic compound GdCo2. If you’ve seen smoke rings, or bubble rings under water, you’ve seen vortex rings: doughnut-shaped vortices that form when fluid flows back on
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A long-standing and incredibly complex scientific problem concerning the structure and behaviour of proteins has been effectively solved by a new artificial intelligence (AI) system, scientists report. DeepMind, the UK-based AI company, has wowed us for years with its parade of ever-advancing neural networks that continually trounce humans at complex games such as chess and
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Astronomers have mapped about a million previously undiscovered galaxies beyond the Milky Way, in the most detailed survey of the southern sky ever carried out using radio waves. The Rapid ASKAP Continuum Survey (or RACS) has placed the CSIRO’s Australian SKA Pathfinder radio telescope (ASKAP) firmly on the international astronomy map. While past surveys have
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For the first time, scientists with the National Oceanic and Atmospheric Administration (NOAA) have formally identified a new species of undersea creature based solely on high-definition video footage captured at the bottom of the ocean. And what an undersea creature it is. Meet Duobrachium sparksae – a strange, gelatinous species of ctenophore, encountered by the remotely
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The question of whether a 7-million-year-old primate, nicknamed ‘Toumai,’ walked on two or four legs has whipped up drama amongst palaeontologists – complete with a vanishing femur. Since the discovery of Sahelanthropus tchadensis’s first fossil back in 2001, it has often been cited as our earliest known hominin ancestor. Initial analysis suggested that Sahelanthropus regularly walked upright
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An Egyptian mummy that was decorated with a woman’s portrait contained a surprise – the body of a child who was only 5 years old when she died. Now, scientists have learned more about the mysterious girl and her burial, thanks to high-resolution scans and X-ray ”microbeams” that targeted very small regions in the intact artifact. Computed X-ray tomography (CT)