NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline — a 17th-century invention credited as the first mechanical calculator. Blaise Pascal was a mathematician, a scientist, a ...
Blaise Pascal is known for a number of things, but we remember him best for the Pascaline, an early mechanical calculator. [Chris Staecker] got a chance to take a close look at one, which is quite a ...
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