Heisenberg states uncertainty principle
1927
Werner Heisenberg, working on a problem in the new quantum mechanics, showed that you cannot know both where a particle is and where it is going with perfect accuracy. The universe, at its smallest scales, was genuinely fuzzy. Einstein hated it. Most physicists, eventually, did not. Classical certainty was gone for good.
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Also in 1927 (4 other events on record)
- Lindbergh lands in Paris · Europe · Technology
- Chiang Kai-shek purges communists in Shanghai · East Asia · Politics
- The Jazz Singer opens in New York · North America · Culture
- Trotsky expelled from Communist Party · Europe · Politics
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Era
Modern Era (1901–2000), one of 590 events from that era on Saeculum.