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Werner Heisenberg published his uncertainty principle in 1927 when he was twenty
Featured Event 1976 Death

February 1

Heisenberg Dies: Quantum Pioneer Leaves Uncertain Legacy

Werner Heisenberg published his uncertainty principle in 1927 when he was twenty-five, upending three centuries of physics in eight pages. You cannot know precisely both the position and momentum of a particle at the same time — the act of measuring one disturbs the other. This wasn't a limitation of instruments. It was a property of reality. Classical physics assumed a clockwork universe. Heisenberg proved the clockwork had been an illusion.

February 1, 1976

50 years ago

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