Schrödinger's cat - Wikipedia, the free encyclopedia

Schrödinger's cat - Wikipedia, the free encyclopedia: "Schrödinger's cat is an imaginary experiment — a thought experiment — devised by Erwin Schrödinger, which is often described as a paradox. It attempts to illustrate what he saw as the problems of the Copenhagen interpretation of quantum mechanics when it is applied to systems large enough to be seen with the naked eye, and not just to atomic or subatomic systems."