Tom Apostol was also part of the team that put together &quot;The Mechanical Universe&quot;, a highly acclaimed 52 episode series of video lectures that cover a full undergraduate physics course.<p>The creators of the program provide all episodes online at <a href="https:&#x2F;&#x2F;www.learner.org&#x2F;resources&#x2F;series42.html" rel="nofollow">https:&#x2F;&#x2F;www.learner.org&#x2F;resources&#x2F;series42.html</a><p>I never met the man but I learned a lot from him.  May he rest in peace.