Month: March 2019

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Researchers at the California Institute of Technology (Caltech) say they’ve found a way to levitate and propel objects using only light – though, for the time being, the work remains theoretical. They hope the technique could be used for “trajectory control of ultra-light spacecraft and even laser-propelled light sails for space exploration,” according to a
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Do human beings have a magnetic sense? Biologists know other animals do. They think it helps creatures including bees, turtles and birds navigate through the world. Scientists have tried to investigate whether humans belong on the list of magnetically sensitive organisms. For decades, there’s been a back-and-forth between positive reports and failures to demonstrate the