A vacuum pump is a device that draws gas molecules from a sealed volume in order to leave behind a partial vacuum. The job of a vacuum pump is to generate a relative vacuum within a capacity. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity.
invented by James Hargreaves
The spinning jenny is a multi-spindle spinning frame, and was one of the key…
invented by Otto von guericke
An electrostatic generator, or electrostatic machine, is an electromechanical…
invented by Evangelista Torricelli
A barometer is a scientific instrument that is used to measure air pressure in…
invented by John Roebuck
The lead chamber process was an industrial method used to produce sulfuric acid…
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