Richard Feynman - The Relation of Mathematics & Physics: http://www.youtube.com/watch?v=1SrHzSGn-I8
Richard Feynman - The Distinction of Past and Future: http://www.youtube.com/watch?v=_Kab9dkDZJY&feature=relat...
Richard Feynman - Law of Gravitation: http://www.youtube.com/watch?v=4s-wfpsmtyU&feature=mfu_i...
There are about 7 lectures total. They are all amazing.
(EDIT: Looks like they aren't all on Youtube. Watch them here: http://www.fotuva.org/news/project_tuva.html )
Richard Feynman - The Relation of Mathematics & Physics: http://www.youtube.com/watch?v=1SrHzSGn-I8
Richard Feynman - The Distinction of Past and Future: http://www.youtube.com/watch?v=_Kab9dkDZJY&feature=relat...
Richard Feynman - Law of Gravitation: http://www.youtube.com/watch?v=4s-wfpsmtyU&feature=mfu_i...
There are about 7 lectures total. They are all amazing.
(EDIT: Looks like they aren't all on Youtube. Watch them here: http://www.fotuva.org/news/project_tuva.html )