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Curta calculator: The mechanical marvel born in a Nazi death camp
An Interview with Curt Herzstark
Curt Herzstark discusses the history of the Austrian Calculating Machine Manufacturing Company, his father's inventions and the development of the CURTA hand-held calculator.
conservancy.umn.edu
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the (abridged) story of Curt Herzstark, the brilliant Viennese engineer who invented an incredibly complex handheld mechanical calculator in the Buchenwald concentration camp
"Curious History Pocket Calculator"
The document discusses the history and features of the Curta calculator, an innovative mechanical pocket calculator invented by Curt Herzstark during his time in a concentration camp.
computarium.lcd.lu(PDF) The Curta, a Technical Marvel
researchgate.net
Already in 1926-27 while I was in sales, people said again and again, "Yes, that is nice, but isn't there anything smaller?" This was a time when there was a lot of advertising of the calculating machine. Everyone who was a technician, carried his slide rule. But for calculating, the equivalent didn't exist. People again and again said, "Does somet... See more
Curt Herzstark • An Interview with Curt Herzstark
"I had an idea… I should look at everything backwards… I'll pretend I have already invented everything. What does this kind of machine have to look like, so someone could use it?”
Curta calculator: The mechanical marvel born in a Nazi death camp: