New experiments at United States and European laboritories have now pushed the eerie phenomena of quantum mechanics much closer to the everyday world with an experiment that is a simplified version of the concept of Schroedinger's cat...
A few physicists have devised so-called macrorealistic theories to resolve the ambiguities of quantum mechanics. "What you get in quantum mechanics is not what you see," said Dr. Philip Pearle, a professor of physics at Hamilton College in Clinton, N.Y. An experiment measuring how one observation affects a later one should distinguish whether quantum mechanics or a macrorealistic theory rules the everyday world.

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