Wooden Turing machine - GIF
Wooden Turing machine by Richard Ridel. Invented by mathematician Alan Turing, the machine can simulate complex computer algorithms.
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More:
https://www.cl.cam.ac.uk/projects/ra...chine/one.html
Previously:
https://www.homemadetools.net/forum/...631#post132763
https://www.homemadetools.net/forum/...833#post152447
https://www.homemadetools.net/forum/...6452#post83701