Marble Binary Adder

We were really surprised to see that we could make one by modifying only slightly our half adder.

Marble binary adder.

It had occurred to me that perhaps with an insane amount of perseverance it might be possible to build a whole computer that runs on marbles. Make it fall in the first. It s also fun to use the adder for subtraction and negative numbers by using the two s complements of numbers. A full adder is normally made of two half adder and one or gate.

A fun waste of champagne. Wood based marble calculators invention invent. It is very neat. Daily dosage subscribe unsubscribe 684.

C it is not accurate to say a simple ripple adder is a computer. If you want to build one he even gives you some more information and instructions plus the plans. It can be made from primative materials but the adder is hardly primative. Since today 11 11 11 is the last 6 digit binary date this century i thought we should look at some kinetic binary calculators.

B saying a digital binary ripple adder is analog seems almost exactly wrong. How to science tech. It is split into 2 parts. If there is one marble.

This means interpreting the leftmost bit as the positive or negative sign and flipping all the other bits to convert from positive to negative. A calculator using a marble binary system. 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.

Every 2 years the science festival invites to bring science to young people. Matthias wandel built a beautiful 6 digit binary computer out of wood. It is very neat. A the first patent for a marble powered ripple adder 3 006 082 was issued in 1961.

For maximum marble action add 63 111111 in binary to 63. The first 2 days are for dedicated workshops with groups from various schools.