The Clever Way to Count Tanks

Featuring Dr James Grime.

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How mathematics and probability cracked the puzzle of how many tanks were being produced by Nazi Germany during World War 2.

James Grime: https://www.singingbanana.com

More James on Numberphile: http://bit.ly/grimevideos

Dr Grime on the Enigma Machine: https://youtu.be/G2_Q9FoD-oQ