Hi, my college has just purchased some TTs and I was wondering if it is possible to add 2 numbers represented by binary (1 - blue marble 0 - red marble) on both sides. The answer appears as binary on one side at the bottom.

Thanks

Jim

# Adding numbers by binary balls

TT can’t distinguish the two types of ball, so it would not be possible to work with two arbitrary patterns of red/blue balls.

It would be possible to create a limited binary adder where the input numbers were set up with ‘bits’ (i.e. the initial positions of the bi-state pieces). The *output* could be represented by other bits, or, possibly, by a pattern of red/blue balls per your original idea.

Richard, thank you for your reply. Will have a play with your idea of a binary adder.

Cheers.

Jim