I asked DG why he didn’t use the abacus to calculate our hit rate compared to The Google instead of the slide rule.
We have an abacus in our computer museum, you know. Here is a photo of it.
He said “You can’t do division on an abacus”.
I said, “Yes you can”.
DG: No, you can’t.
Me: Yes, you can.
DG: No
Me: Yes.
DG: No you can’t.
Me: Well, I can.
DG: Prove it.
So, to prove my point I did the calculation on the abacus. It is done by successive subtractions of the divisor from the dividend, counting how many times you can do that.
Just in case you are interested, I made a little animation of how to do it. Take a look.
DG didn’t know what to say.
I knew what to say.
Gotcha!