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Hello there.

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

29 and Leap Years

29 and Leap Years

Astronomer Dr Meghan Gray on leap years and Julian dates.

Meghan is making a "guest appearance" on Numberphile and is more familiar to viewers of our sister channels DeepSkyVideos and Sixty Symbols.

DeepSkyVideos: https://www.youtube.com/user/deepskyvideos
Sixty Symbols: https://www.youtube.com/user/sixtysymbols

1729 and Taxi Cabs

1729 and Taxi Cabs

145 and the Melancoil

145 and the Melancoil