Physics

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Curling is one of the more unusual sports of the Winter Olympics, often drawing comparisons to shuffleboard, but played on ice. A roughly 42-pound curling rock, or stone, is pushed then slides down a sheet of ice, while two players furiously sweep the surface in front of the stone. The sweeping motion heats up the
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Holograms are pretty cool, sure. But they’re still just two-dimensional projections that hover in the air, and as soon as you step to the side, the magic disappears, revealing how flat the thing really is.   But now researchers from Brigham Young University have demonstrated they can create fully three-dimensional projections of moving images – and
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Achieving nuclear fusion without needing radioactive fuel or producing radioactive waste is now “within reach” thanks to a new laser-driven technique, according to researchers.   The type of fusion we’re talking about is hydrogen-boron fusion, which produces no neutrons and therefore no radioactivity in its primary reaction. The downside, and part of what’s made it
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Researchers at MIT have invented a temporary “tattoo” made from genetically programmed living cells. Their prototype looks like a stick-on patch with a pattern in the shape of a tree.   It’s divided into sections printed with a slurry containing live bacteria that fluoresce when they come into contact with particular compounds. When the skin under