Marble Binary Adder

A calculator using a marble binary system.

Marble binary adder.

For maximum marble action add 63 111111 in binary to 63. A fun waste of champagne. This means interpreting the leftmost bit as the positive or negative sign and flipping all the other bits to convert from positive to negative. If you want to build one he even gives you some more information and instructions plus the plans.

A the first patent for a marble powered ripple adder 3 006 082 was issued in 1961. How to science tech. A full adder is normally made of two half adder and one or gate. Daily dosage subscribe unsubscribe 684.

It is split into 2 parts. Wood based marble calculators invention invent. Every 2 years the science festival invites to bring science to young people. It s also fun to use the adder for subtraction and negative numbers by using the two s complements of numbers.

It is very neat. Matthias wandel built a beautiful 6 digit binary computer out of wood. It is very neat. It can be made from primative materials but the adder is hardly primative.

B saying a digital binary ripple adder is analog seems almost exactly wrong. In common term the full adder is the same as a half adder apart that if there is a third marble then it should fall in the 1 path. Adder binary copper marble adder science festival. Binary marble adding machine way back when i built my marble machine one i incorporated a few logic like elements in it including several divide by two mechanisms as well as a complicated and slightly unreliable divide by 6 mechanism.

The last 2 days are open to the public. The first 2 days are for dedicated workshops with groups from various schools. Make it fall in the first. If there is one marble.

C it is not accurate to say a simple ripple adder is a computer. We were really surprised to see that we could make one by modifying only slightly our half adder.