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kottke.org posts about matthiaswandel

posted by Jason Kottke

Video of a binary adding machine made

Video of a binary adding machine made out of wood and operated by marbles.

Update: The adding machine was built by Matthias Wandel, woodworker extraordinaire. Here’s an explanation of how the machine works. Be sure to check out the other projects listed on his home page and what’s new page. (thx, charles)