1854 – mercury vacuum pump

In 1854, Heinrich Geissler invented the mercury displacement vacuum pump, which led to high quality vacuum tubes, which in turn led to the invention of the transistor.

PRECURSOR:
-0460 – Democritus
1206 – suction pump
1643 – barometer
1650 – vacuum pump

SUBSEQUENT:
1855 – vacuum tube
1875 – Crookes’ tube
1897 – electron discovered by Thomson
1906 – amplifier tube
1915 – diffusion pump
1958 – turbomolecular pump
1947 – transistor

SEE ALSO:
Suction pump to transistor
The History of Vacuum Science and Vacuum Technology

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