Portent | Cool, Fun Stuff
Jun
23
Posted on 23-06-2007
This is quite clever. In all CPUs there are circuits for doing arithmetic. One is an adder. It er adds numbers. It works in binary (all ones and zeroes). If you add 1 to 1 you 10 (in binary- the equivalent of 2 in decimal). You can read more about adders on wikipedia.
Matthias Wandell is into making things in wood. So he has implemented an adder in wood using marbles. In fact he does a lot of stuff in wood, and his site is an excellent tribute to one of the oldest materials and its uses! Theres a video of the adder in operation on this page as well. It’s very ingenious and not a bad way to demonstrate binary addition.
If you don’t like wood he also has a Lego version and other lego machines on this page.
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