A mechanical, wooden Turing machine
by Cory Doctorow from on (#3HP3X)
https://www.youtube.com/watch?v=vo8izCKHiF0
Richard J. Ridel's all-wooden, mechanical Turing machine uses the smallest set of data elements capable of computing any calculation: 0, 1 and blank; it was inspired by Ridel's viewing of The Imitation Game. (more")