Starting with hands, abacus, and slide rule, humans have always reached for tools to simplify math. Pocket-sized calculators ushered in modern mathematics, helped build the atomic bomb, took us to the bottom of the ocean, and accompanied us to the mo...Lasīt vairāk
The tale of the pocket-sized revolution of the innovative pocket calculator. Before the 1970s, for anything but basic arithmetic, a pen and paper was needed and complex calculations required a slide rule or logarithm tables. Electronic...Lasīt vairāk
This history of the pocket calculator reveals how the device was designed and invented, and how it ushered in modern mathematics and contributed to both the creation of the atomic bomb and the mission to land men on the moon. Illustrations. T...Lasīt vairāk
