Physics

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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Back in 2015, scientists found something amazing – a classic formula for pi hidden in the world of quantum physics. Pi is the ratio between a circle’s circumference and its diameter, and is incredibly important in pure mathematics. But this was the first time scientists had found it “lurking” in the world of physics, when
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It’s been a year since the renowned and profoundly influential physicist Stephen Hawking passed away, and the Royal Mint has honoured his legacy in the form of a new commemorative 50 pence coin. If you’ve ever been concerned that British currency doesn’t feature enough astrophysical equations, we have good news. Although the collector’s item, sold on
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In November, Chinese researchers announced that the Experimental Advanced Superconducting Tokamak (EAST) reactor — an “artificial sun” designed to mimic the nuclear fusion process the real Sun uses to generate energy — had hit a milestone by achieving an electron temperature of 100 million degrees Celsius. Now, officials are saying they believe they’ll wrap up
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