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The benefits of vaccination are well documented. The AstraZeneca Covid jab is credited with saving millions of lives. And yet for those who were harmed by the jab, the resulting injuries are devastating.
Researchers have found a way to get these virtual photons to influence the behavior of a superconductor, ultimately making it worse. That may, in the end, tell us something useful about superconductivity, but it'll probably take a little while.