The hand-cranked calculator invented by a Nazi concentration camp prisoner

[Kent Sharkey]

Ars Technica[^]:

The diminutive “Curta” is a striking machine, a mechanical calculator that combines the complexity of a steamship engine and the precision craftsmanship of a fine pocket watch.

Not number-crunching, but number-cranking

[David ONeil]

100% Geek Cool! And you can 3D print them 3x scale: [The 3D-Printed Curta Calculator](https://www.youtube.com/watch?v=j9uRckJLqLk) Surprised I'd never heard of them before!

The Science of King David's Court | Object Oriented Programming with C++

[Daniel Pfeffer]

Quote:

It’s no bigger than a drinking glass, and it fits easily in the palm of the hand. It resembles a pepper grinder—or perhaps a hand grenade.

The Holy Hand Calculator of Lichtenstein? :)

Freedom is the freedom to say that two plus two make four. If that is granted, all else follows. -- 6079 Smith W.

[Peter_in_2780]

I remember drooling over the ads in SciAm in the mid-60s.

Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012

[enhzflep]

I've used one of these and boy oh boy are they well made and a treat to hold and operate. Dad inherited his father's one. Thanks for the link, :thumbsup: I'll bet Dad didn't know about the link to the Nazis either.