Bletchley Park Trust on Twitter: "Richard, 10, has made this Bombe machine out of Lego,... - 2 views
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Derek Bruff on 01 Dec 15"Richard, 10, has made this Bombe machine out of Lego, complete with wires on the back."
Diigo group for Vanderbilt University's Math 1111: Cryptography, taught by Derek Bruff