The Curta is a hand-held mechanical calculator designed by Curt Herzstark. It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.
The Curta is a hand-held mechanical calculator designed by Curt Herzstark. It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.
They were expensive when new.
I got to hold and use one once, friend of a friend had it. It felt so satisfying in my hands.
!flashlight@lemmy.world has metal cylinders of about that size with knurling too.