В Финляндии предупредили об опасном шаге ЕС против России09:28
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Late summer rain is causing havoc across Australia, with South Australia on flood watch, Victoria cleaning up after a downpour, and Sydney issuing a shark warning after heavy falls.
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.