Otto von Guericke invented the air pump in 1650. This invention demonstrated that a vacuum could exist, something previously considered impossible. Asserting the existence of the vacuum was essential to future study and innovation in electronics and other areas of research.
Von Guericke's invention and his elaborate demonstrations disproved the notion that nature abhors a vacuum. Instead, he proved that substances were not pulled by a vacuum, but were pushed by the pressure of the surrounding fluids.
The inventor also applied the barometer to weather prediction, thus paving the way for the study of meteorology and the very first electric generator in 1660.