"One sees in this paradox the germ of the special relativity theory is already contained," Einstein wrote in his "Autobiographical Notes." This is a cornerstone of Einstein's special theory of relativity. One of Einstein's thought experiments had to do with quantum entanglement, which he called "spooky action at a distance." AdvertisementAdvertisementMany scientists have spent decades researching Einstein's thought experiments. But Einstein thought particles behaved more like real coins.

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Persons: Albert Einstein, —, Stringer, Einstein, simultaneity, Ernst Haas, Niels Bohr Organizations: Service, Central Press, Getty