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Binary marble adding machine - Thomas Klemm - 08-31-2014 06:56 PM
Binary marble adding machine
![[Image: marble_adder.jpg]](http://woodgears.ca/marbleadd/marble_adder.jpg)
RE: Binary marble adding machine - Thomas Radtke - 09-01-2014 08:10 AM
Beatiful, thanks for sharing!
RE: Binary marble adding machine - Don Shepherd - 09-04-2014 02:09 AM
Thomas, that is a really neat machine, thanks for sharing this with us. I am tempted to ask my wife's father, who is an expert woodworker, to make one of these for me.
RE: Binary marble adding machine - CosmicTruth - 09-04-2014 10:56 AM
It looks too bulky to carry around, so I'll keep my 50G.
RE: Binary marble adding machine - Jim Horn - 09-04-2014 03:30 PM
You can find all the details on how to make that one yourself in MAKE magazine (makezine.com) Vol 20. Fun magazine in general - I recommend it!
RE: Binary marble adding machine - everettr - 09-04-2014 03:36 PM
(09-04-2014 03:30 PM)Jim Horn Wrote: You can find all the details on how to make that one yourself in MAKE magazine (makezine.com) Vol 20. Fun magazine in general - I recommend it!
+1 for MAKE magazine
RE: Binary marble adding machine - ColinJDenman - 09-24-2014 07:18 PM
So that's what was inside all those 74LS flip-flops and half adders.
I wonder if they could now make such a nano mechanism to count electrons in a similar manner. Sounds like a job for the IBM researchers to play with.
RE: Binary marble adding machine - Thomas Puettmann - 10-23-2014 08:25 PM
This marble adding machine was designed and built by Matthias Wandel some years ago. Already in the 1960s, John Thomas Godfrey invented two ingenious toys with ball flip-flops. Just search for Digicomp II and Dr Nim. The first person who had the idea to use rolling balls for a binary computer was no other than the inventor of the binary system himself, Gottfried Wilhelm Leibniz, see http://history-computer.com/Dreamers/Leibniz.html.