@SFOMuseum Twitter Posts This is SFO Museum's archive of the @SFOMuseum Twitter account.
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During the 1930s, the smallest calculator weighed several pounds. Austrian engineer Curt Herzstark (1902–1988) conceived of a pocket-sized calculator that could add, subtract, multiply, and divide. #MathAtSFO . This tweet was posted on February 16, 2022.