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Despite the headline, this isn't really a story about superconductivity—at least not the superconductivity that people care about, the stuff that doesn't require exotic refrigeration to work. Instead, it's a story about how superconductivity can be used as a test of some of the weirder consequences of quantum mechanics, one that involves non-existent particles of light that still act as if they exist.。体育直播对此有专业解读
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Researchers claim to have found the first conclusive case of sex ‘distortion’ in people. Plus, stem cells could treat spina bifida and how 30 years of Pokémon has influenced science.