Schrödinger's Cat
A cat sealed in a box, neither alive nor dead until somebody looks. The story was invented to show the idea was absurd.
193514 min read
Danish theoretical physics
Niels Bohr
1885 – 1962
Danish physicist, Nobel laureate of 1922, and the central figure of what became known as the Copenhagen interpretation. His institute in Copenhagen trained much of the founding generation of quantum theory. His doctrine of complementarity — that a quantum system's description depends irreducibly on the experimental arrangement used to probe it — was his standing reply to Einstein, including his same-titled 1935 rebuttal of the EPR argument.
2 entries
The EPR Paradox
Measure one particle here and you instantly know something about its partner light-years away. Einstein thought this proved physics was unfinished.
1935 (argument), 1964 (Bell's theorem), 2015 (loophole-free tests)21 min read