these look cool, just downloaded them onto my phone.
https://www.youtube.com/results?search_query=richard+feynman+the+character+of+physical+law
( , Mon 1 Sep 2014, 16:06, Share, Reply)
https://www.youtube.com/results?search_query=richard+feynman+the+character+of+physical+law
( , Mon 1 Sep 2014, 16:06, Share, Reply)