Wooden Binary Adding Machine
Penguin December 6th, 2007
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This is a well made wooden binary adding machine. The mechanics of the device are really cool. For those of you who don’t know binary, this may be a bit over your head.
Here’s a quick primer.
Normally, we count in base 10. This is from the number of fingers we have on our hands. In base 2, or binary, there are only 2 states, 0 and 1, or a bit. Where as, in base 10, there are 10 states, 0-9. The “tens” place in base 10 represents 10^1 = 10, the “hundreds” is 10^2 = 100, etc. In binary, the “tens” place represents 2^1 = 2, the “hundreds” place represents 2^2 = 4.
Now, your hands can represent a lot more than just 10. If you need to count large numbers, you can count up to 2^10 - 1, or 10 bits, or 1023.
Assignment: Represent 132 on your fingers.
- Penguin
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