Turing Tumble
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Turing Tumble is a mechanical computer created by Paul Boswell in 2017, operated by marbles. It is targeted for education, but with a big enough board could allow to build any contraption and is Turing Complete.
Marbles move down the board by gravity, controlled by 6 types of parts you can add to the board. When a marble hits the bottom, a new marble from the top is released. Two types of marbles can be released, blue or red.
| Part | Function |
|---|---|
| ramp | moves the marble left or right |
| crossover | allows marble to keep moving |
| interceptor | stops the program |
| bit | toggle between left and right state and sends marbles in alternating directions, operates like a T flip-flop |
| gear bit | bit that can be connected with gears, this component makes it Turing complete |
| gear | connects gear bits |