Turing Machine

http://www.openculture.com/2018/03/a-turing-machine-handmade-out-of-wood.html

Alan Turing to receive a posthumous pardon

as discussed in this forum.  http://www.openculture.com/2013/07/alan-turing-brilliant-mathematician-and-code-breaker-will-be-finally-pardoned-by-british-government.html

Enigma Machine, Alan Turing, and Mick Jagger

There is a nice youtube video that shows an actual enigma machine at the link. And shows an example of the coding and decoding.   http://www.openculture.com/2013/01/the_enigma_machine_how_alan_turing_helped_break_the_unbreakable_nazi_code_.html

Scientists advocate posthumous pardon for Alan Turing

http://www.bbc.co.uk/news/uk-20722581#