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28 dez 1855 ano - J.J. Thomson (1856-1940)

Descrição:

In 1894, Thomson began studying cathode rays, which are glowing beams of light that follow an electrical discharge in a high-vacuum tube.

Adicionado na linha do tempo:

13 out 2017
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558

Data:

28 dez 1855 ano
Agora
~ 169 years ago