Marble Binary Adder

C it is not accurate to say a simple ripple adder is a computer.

Marble binary adder.

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. B saying a digital binary ripple adder is analog seems almost exactly wrong. Wood based marble calculators invention invent. It can be made from primative materials but the adder is hardly primative.

A full adder is normally made of two half adder and one or gate. This means interpreting the leftmost bit as the positive or negative sign and flipping all the other bits to convert from positive to negative. Adder binary copper marble adder science festival. A calculator using a marble binary system.

We were really surprised to see that we could make one by modifying only slightly our half adder. It is split into 2 parts. The first 2 days are for dedicated workshops with groups from various schools. Every 2 years the science festival invites to bring science to young people.

A the first patent for a marble powered ripple adder 3 006 082 was issued in 1961. Since today 11 11 11 is the last 6 digit binary date this century i thought we should look at some kinetic binary calculators. It s also fun to use the adder for subtraction and negative numbers by using the two s complements of numbers. The last 2 days are open to the public.

It is very neat. Matthias wandel built a beautiful 6 digit binary computer out of wood. Make it fall in the first. Daily dosage subscribe unsubscribe 684.

A calculator using a marble binary system. 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. It is very neat. 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.

If there is one marble. A fun waste of champagne.