Archive for April 28th, 2017:

Physics of throwing analysed by scientists

Image copyright SPL Image caption The act of throwing is more complex than you would expect Scientists have calculated the optimal strategy for throwing something accurately – whether it’s a dart or a crumpled-up piece of paper. US researchers say the slow-is-more-accurate rule generally applies. In a series of calculations, they looked at the physics

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‘Fossil’ groundwater’s modern secret

Media captionJim Kirchner: “Fossil groundwater fell as rain when mastodons still roamed the Earth” The world’s oldest and deepest waters are not immune from contamination, warn scientists. It had been assumed that “fossil” reserves found hundreds of metres underground would be largely untouched by modern water sources. But sampling from some 10,000 wells shows this

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DNA of extinct humans found in caves

Image copyright MPI For Evo Anthro / J. Krause Image caption The remains of Neanderthals had previously been found at Vindija Cave in Croatia The DNA of extinct humans can be retrieved from sediments in caves – even in the absence of skeletal remains. Researchers found the genetic material in sediment samples collected from seven

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