This video is about Bell's Theorem, one of the most fascinating results in 20th century physics. Even though Albert Einstein (together with collaborators in the EPR Paradox paper) wanted to show that quantum mechanics must be incomplete because it was nonlocal (he didn't like "spooky action at a distance"), John Bell managed to prove that any local real hidden variable theory would have to satisfy certain simple statistical properties that quantum mechanical experiments (and the theory that describes them) violate. Since then, Daniel M. Greenberger, Michael A. Horne, Anton Zeilinger and others have managed to extend the theoretical work, and Alain Aspect performed the first Bell test experiment in the late 1980s.
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There is a mystery that has confounded scientists for a century.
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Any theory of quantum gravity is going to have to grapple with some weird time stuff.
In this inspiring talk, the mathematician Edward Frenkel speaks about the beauty and elegance of mathematics
New evidence shows that the key assumption made in the discovery of dark energy is in error
Engineers crack 58-year-old puzzle on way to quantum breakthrough
So-called “information realism” has some surprising implications
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