Marble Binary Adder

It s also fun to use the adder for subtraction and negative numbers by using the two s complements of numbers.

Marble binary adder.

We were really surprised to see that we could make one by modifying only slightly our half adder. Daily dosage subscribe unsubscribe 684. A calculator using a marble binary system. A fun waste of champagne.

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

Adder binary copper marble adder science festival. It is very neat. Make it fall in the first. 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 is split into 2 parts. Wood based marble calculators invention invent. This means interpreting the leftmost bit as the positive or negative sign and flipping all the other bits to convert from positive to negative. 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.

B saying a digital binary ripple adder is analog seems almost exactly wrong. For maximum marble action add 63 111111 in binary to 63. 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 you want to build one he even gives you some more information and instructions plus the plans.

The last 2 days are open to the public. It can be made from primative materials but the adder is hardly primative. The first 2 days are for dedicated workshops with groups from various schools. A full adder is normally made of two half adder and one or gate.

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. A the first patent for a marble powered ripple adder 3 006 082 was issued in 1961.