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Log slide rule (14h 39min, nov 21, 2018 y – jan 1, 1815)

Description:

Peter Mark Roget invented the log slide rule, which included a scale displaying the logarithm of the logarithm.

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Counting/Caculating Inventions

4 Nov 2019

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373

Date:

14h 39min, nov 21, 2018 y

jan 1, 1815

~ 204 years

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