rationalskepticism.org

I don't know why this thread never took off, given the vast amount of material on youtube. So, an attempt to resurrect it, with some videos from Brady Haran (sixtysymbols, Numberphile, Periodic Table of Videos and various other channels):

[youtube]http://www.youtube.com/watch?v=k1oh3lXR5PE[/youtube]

[youtube]http://www.youtube.com/watch?v=-Djj6pfR9KU[/youtube]