Lagrangian Mechanics: How powerful is it?

Comments · 1.3K

• SC

  @ScienceAsylum · 7 years ago · pinned

  If you&apos;re looking for more on Lagrangian mechanics, there&apos;s a whole chapter in my eBook on it (Chapter 4): <a href="https://gumroad.com/l/ubSc">https://gumroad.com/l/ubSc</a> I even use the double pendulum as one of my examples, if you were itching for more detail. 🤓

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• AD

  @adamroach4538 · 7 years ago

  <a href="https://www.youtube.com/watch?v=MIBfKJHMWHU&amp;t=382">6:22</a><br>Sledge hammer: <br>x =( -b ± √b²-4ac) / (2a)<br>Walnut: x² +2x = 0

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• PH

  @photelegy · 6 years ago

  <a href="https://www.youtube.com/watch?v=MIBfKJHMWHU&amp;t=339">5:39</a><br>1: Does it take every path ...?<br>2: No no no, don&apos;t be ridiculous!<br><br>Quantum Mechanics: Am I a joke to you?

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• LA

  @LaserGuidedLoogie · 7 years ago (edited)

  Great video.<br>When I discovered Langrangian mechanics, as a physics major, I was like, &quot;holy shit! my life has been a lie!&quot; <br>You feel like a kid who has been playing with alphabet blocks, suddenly learning about literature.

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• KE

  @kevindaniel8249 · 7 years ago

  Please make a video on Hamiltonian Mechanics!!! Enjoyed this one thoroughly :D

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• AN

  @An0nim0u5 · 7 years ago

  I think Youtube is broken... This channel should have well over million subs...

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• BE

  @benbedraabdssamad1413 · 7 years ago

  What I like most about lagrangian mechanics is how it treats forces such as surface reaction (normal force) and string tension. Basically, the theory replaces this kind of forces by geometrical expressions called &quot;constraints&quot;, which are relations between coordinates or/and velocities that can be determined by the geometry of the situation. This greatly simplifies the problem by reducing the number of coordinates or degrees of freedom.

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• AN

  @anujarora0 · 7 years ago

  <a href="https://www.youtube.com/watch?v=MIBfKJHMWHU&amp;t=160">2:40</a> There&apos;s this farmer, and he has these chickens, but they won&apos;t lay any eggs. So, he calls a physicist to help. The physicist then does some calculations, and he says, um, I have a solution, but it only works with spherical chickens in a vacuum.

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• TT

  @ttpippy123 · 7 years ago

  I&apos;m not first<br>I&apos;m not last<br>But when i saw this,<br>I clicked fast<br>..<br>Fast fast

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• BO

  @botondosvath2331 · 7 years ago

  It&apos;s so great to hear &quot;Principle of stationary action&quot; instead of &quot;Principle of least action&quot; :)

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• MO

  @MonteiroLucas · 7 years ago (edited)

  Look.... Many many times have I praised you before. Don&apos;t get tired of it because holy cow...<br><br>Your videos are spectacular. You can explain very deeply, very easily and without losing touch with many many important aspects of science. <br>It&apos;s a very honest simplification with wonderful results.<br>As a physics master and a teacher, I&apos;m always amazed.<br><br>I imagine it takes a lot of hard work from you. So congratulations. Really.

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• DM

  @Dmittry · 7 years ago

  I didn&apos;t think about Lagrangian mechanics before. Now I&apos;m thinking about Lagrangian mechanics.

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