c0nc0rdance 9 months ago
TIL:
This is a Curta mechanical calculator, the state of the art from 1938 to 1970, when electronic calculators replaced them. It could do rapid arithmetic operations.
Nicknames for these pocket devices:
"Math grenade"
"Peppermill"
The inventor was an Austrian engineer, Curt Herzstark.
add a skeleton here at some point