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23 ore 50 min, 7 nov 1885 anni - November 8, 1895: Wilhelm Conrad Roentgen theorizes that fluorescent light shining through a paper wrapped tube must be the result of rays

Aggiunto al nastro di tempo:

ByTim
21 nov 2017
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Data:

23 ore 50 min, 7 nov 1885 anni
Adesso
~ 140 years ago