The Principle of Least Action

Something Strange Happens When You Take This To Its Logical Conclusion
Veritasium, 29 October 2024
00:00
One rule that replaces all of physics
00:51
The problem of fastest descent
05:09
Fermat's principle
07:17
Bernoulli's solution
10:38
Maupertuis' principle
12:28
Maupertuis attacked and ridiculed
14:01
Euler & Lagrange to the rescue
17:22
The general approach to solving these problems
19:32
Writing the principle into its modern form
23:17
Why the principle works
27:08
Another way to do mechanics
30:19
A “spooky” breakthrough

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