2 ч 22 мин, 4 июл 1897 г. - Sir Joseph John “J.J.” Thomson
Описание:
 Thomson published the results of a series of experiments with cathode rays and cathode ray tubes leading him to the discovery of electrons and subatomic particles.  Created the “Plum Pudding Model". 
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2 ч 22 мин, 4 июл 1897 г.
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 ~ 128 г назад