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Hello there.

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

145 and the Melancoil

145 and the Melancoil

More Matt: http://bit.ly/Matt_Videos

Matt Parker talks us through "Happification" and resulting structures it creates. Includes his fascinating Melancoil!?

Our earlier Happy Numbers video is at http://www.youtube.com/watch?v=kC6YObu61_w and the Narcissistic Numbers video is at http://www.youtube.com/watch?v=4aMtJ-V26Z4

Matt Parker's website: http://standupmaths.com/

A pic of the "melancoil" as drawn in this video is at http://www.flickr.com/photos/numberphile/6477394967

Filmed at the Champagne Bar at St Pancras railway station... thanks to them for having us!

29 and Leap Years

29 and Leap Years

Special Magic Square

Special Magic Square