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This is Numberphile. We mainly post videos about mathematics and just numbers in general.

Super Bottle

Super Bottle

Brady Haran
Carlo Séquin, Klein Bottles

Professor Carlo Séquin explains super bottles - and a super duper bottle.

More Klein Bottle videos: http://bit.ly/KleinBottles

More Carlo videos: http://bit.ly/carlo_videos

Carlo Séquin is based at the University of California, Berkeley.

e (Euler's Number)

e (Euler's Number)
The Shortest Ever Papers

The Shortest Ever Papers