<history of science, biography, philosophy> german physicist (1901-1976) who expressed the uncertainty principle, according to which the position and momentum of a subatomic particle cannot both be determined precisely at the same time, as a crucial element of modern quantum mechanics, described in his Physik und Philosophie (Physics and Philosophy) (1958). Heisenberg won the Nobel Prize for physics in 1932. Recommended Reading: Werner Heisenberg, Physical Principles of the Quantum Theory (Dover, 1930); Werner Heisenberg, Philosophical Problems of Quantum Physics (Ox Bow, 1979); and David C. Cassidy, Uncertainty: The Life and Science of Werner Heisenberg (Freeman, 1993).
[A Dictionary of Philosophical Terms and Names]
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