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A comment on Mechanical Computing Systems Using Only Links and Rotary Joints.

Re:Mechanical Computing Systems Using Only Links and Rotary ... by sytelus on Friday January 12, 2018 @09:10PM (#16137872)
Billiard Ball Computer is just made out of billiard balls :).

https://en.wikipedia.org/wiki/Billiard-ball_computer

It's turing complete. I'm wondering if the mechanism described in paper does something above and beyond...

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Re:Mechanical Computing Systems Using Only Links and Rotary ... by pavel_lishin on Saturday January 13, 2018 @10:08AM (#16139846)
Plus, you can implement it with crabs!

http://www.complex-systems.com/abstracts/v20_i02_a02.html

https://www.wired.com/2012/04/soldier-crabs/

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Re:Mechanical Computing Systems Using Only Links and Rotary ... by colordrops on Friday January 12, 2018 @10:02PM (#16138040)
I believe that this is the idea behind reversible computing, which I would assume would require superconducting circuits needing energy only to drive inputs, and the CPU would expend negligible heat.
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