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Atoms Won’t Move When They’re Being Watched, Researchers Proved

Remember playing Super Mario Bros. 3 as a kid (okay, maybe as an adult, too) and encountering Boos? The sneaky ghosts would only move when you weren’t watching them.

Well, Cornell physicists verified that, much like the fictional foes from the Mario universe, a quantum system can’t change while you’re watching it. Of course, the real process is a little different, and has more to do with how we are able (or not able) to measure the world of the very tiny.