How the Four-Color Map Problem Was Finally Solved - Scientific American
The twisty history and surprise ending of the four-color theorem saga
Source: scientificamerican.com
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Enigma machine on display in Waterloo
A new exhibit at the City of Waterloo Museum is inviting visitors to step back in time and crack the code.
Source: kitchener.ctvnews.ca
Jane Fawcett: British Code Talker Who Located the Bismarck
Despite her seemingly innocent and gentle appearance, Fawcett was credited with an action that would make her outstanding and worthy of admiration: She was credited with identifying the message that led to the sinking of the German battleship Bismarck. Here's how she did it.
Source: sofrep.com