Curta calculator: The mechanical marvel born in a Nazi death camp

'Then along came Curt Herzstark' http://newatlas.com/curta-death-camp-calculator/45506/... See more

"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:

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