Ask A Spaceman Ep. 181: What Is The Principle Of Least Action?

<p class="p1">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!</p> <p class="p1">Please support our amazing sponsors of this episode:</p> <p class="p1">• Visit BetterHelp to get 10% off your first month!</p> <p class="p1">• Join Paul's Audio Book Club on Chirp. There are no commitments or subscription required. Listen along with Paul, and you can enjoy deeply discounted prices (for a limited time) on each of Paul's Book Club Selections! Just go to https://www.chirpbooks.com/spaceman and follow the club to stay in the loop for future picks and other exclusive content.</p> <p class="p2"> </p> <p class="p1"><strong>Support the show:</strong> <a href= "http://www.patreon.com/pmsutter">http://www.patreon.com/pmsutter</a></p> <p class="p1"><strong>All episodes:</strong> <a href= "http://www.AskASpaceman.com">http://www.AskASpaceman.com</a></p> <p class="p1"><strong>Follow on Twitter:</strong> <a href= "http://www.twitter.com/PaulMattSutter">http://www.twitter.com/PaulMattSutter</a></p> <p class="p1"><strong>Like on Facebook:</strong> <a href= "http://www.facebook.com/PaulMattSutter">http://www.facebook.com/PaulMattSutter</a></p> <p class="p1"><strong>Watch on YouTube:</strong> <a href= "http://www.youtube.com/PaulMSutter">http://www.youtube.com/PaulMSutter</a></p> <p class="p1"><strong>Read a book:</strong> <a href= "http://www.pmsutter/book">http://www.pmsutter/book</a></p> <p class="p1"><strong>Go on an adventure:</strong> <a href= "http://www.AstroTours.co">http://www.AstroTours.co</a></p> <p class="p2"> </p> <p class="p1">Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!</p> <p class="p1">Big thanks to my top Patreon supporters this month: Justin G, Chris L, Barbara K, Duncan M, Corey D, Justin Z, Nate H, Andrew F, Naila, Scott M, Rob H, Justin, Louis M, Pa