#S19 The principle of least action
Richard Feynman
Jonathan
May 14, 20266 December 1962Caltech, Pasadena CA
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Summary
A lecture explains the principle of least action, showing how Newtonian mechanics can be derived by minimizing an action functional and extending the idea to relativity and quantum mechanics. The speaker also demonstrates analogous minimum principles in electrostatics and discusses practical approximation methods, with personal anecdotes about a formative physics teacher.
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