Otto von Guericke

Otto von Guericke (UK: GAIR-ik-ə, US: G(W)AIR-ik-ə, -⁠ee, German: [ˈɔtoː fɔn ˈɡeːʁɪkə] ; spelled Gericke until 1666; 30 November [O.S. 20 November] 1602 – 21 May [O.S. 11 May] 1686) was a German scientist, inventor, mathematician, and physicist. His pioneering scientific work, the development of experimental methods and repeatable demonstrations on the physics of the vacuum, atmospheric pressure, electrostatic repulsion, his advocacy for the reality of "action at a distance" and of "absolute