Richard Feynman lecture: Strangeness Minus Three (excerpt)

Course Description

This is an excerpt of the BBC Horizon documentary from 1964; for the complete documentary, please go to

An investigation into a fleeting particle of matter, which, if it exists at all, lives for only a fraction of a millionth of a second; the philosophical implications are explained by Richard Feynman.

Richard Feynman lecture: Strangeness Minus Three (excerpt)
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