AaS! 181: What is the Principle of Least Action?

What makes the principle of least action so important? Who came up with it? Is it all just a bunch of math or does it actually mean something? I discuss these questions and more in today's Ask a Spaceman!

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Thanks to Cathy Rinella for editing.

Hosted by Paul M. Sutter, astrophysicist and the one and only Agent to the Stars (http://www.pmsutter.com).