3 ms·

I guess it's a lot quieter than using relays... http://www.nablaman.com/relay/ http://www.nablaman.com/relay/

• elihu 10y ago
  I attended a talk by the guy who built this thing: http://web.cecs.pdx.edu/~harry/Relay/ http://web.cecs.pdx.edu/~harry/Relay/ He included a live demo. It made a very satisfying "kachunk-kachunk-kachunk" sound as it multiplied two numbers. It also made me realize that the threshold of complexity necessary to construct a practical turing-complee computing device is quite low.
  • i336_ 10y ago
    Indeed, it doubled as a beatbox machine, with 99% perfect rhythm! https://www.youtube.com/watch?v=n3wPBcmSb2U https://www.youtube.com/watch?v=n3wPBcmSb2U (Unfortunately the small demo isn't doesn't run to completion, perhaps because the source material didn't include it, or because uploading it all would have been nontrivial)