Pi me a River
How the length (and sinuosity) of rivers relates to Pi - featuring Dr James Grime.
More on Pi from Numberphile: http://bit.ly/PiNumberphile
The paper in Science (abstract): http://bit.ly/1m1j79B
James Grime: http://singingbanana.com
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This is Numberphile. We mainly post videos about mathematics and just numbers in general.
