Alan Turing's Bombe Rebuilt

The bombe was an electromechanical device used by British cryptologists to help decipher German Enigma-machine-encrypted signals during World War II. The US Navy and US Army later produced machines to the same functional specification, but engineered differently.

The initial design of the bombe was produced in 1939 at the UK Government Code and Cypher School at Bletchley Park by Alan Turing, with an important refinement devised in 1940 by Gordon Welchman

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