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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"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:
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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