The Wood-And-Marbles Binary Adder

Larry O'Brien: "Words cannot express my admiration for this".



As usual, Larry has it exactly right.



http://www.knowing.net/ct.ashx?id=63124bf6-9a57-43a2-aff8-62df8de3ffed&url=http%3a%2f%2fwww.makezine.com%2fblog%2farchive%2f2007%2f06%2fbinary_marble_adding_mach.html