The lead chamber process was an industrial method used to produce sulfuric acid in large quantities. It has been largely supplanted by the contact process.
invented by Otto von guericke
An electrostatic generator, or electrostatic machine, is an electromechanical…
invented by Daniel Gabriel Fahrenheit
A thermometer is a device that measures temperature or a temperature gradient…
invented by James Hargreaves
The spinning jenny is a multi-spindle spinning frame, and was one of the key…
invented by Otto von guericke
A vacuum pump is a device that draws gas molecules from a sealed volume in…
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Inventions that changed the world
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