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30 déc. 1895 - Henri Becquerel

Description:

While studying the effect of x-rays on photographic film, he discovered some chemicals spontaneously decompose and give off very pentrating rays.

Ajouté au bande de temps:

Scientific method of atom

ByNashua Lovett

11 déc. 2018

0

0

306

Date:

30 déc. 1895

Maintenaint

~ Il y a 129 ans

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