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31 gen 1897 anni - Cathode Ray Tube

Descrizione:

The Cathode Ray are streams of electrons observed in vacuum tubes, If an evacuated glass tube is equipped with two electrodes and a voltage is applied, glass behind the positive electrode is observed to glow, due to electrons emitted from and traveling away from the cathode. Invented by Karl Ferdinand Braun

Aggiunto al nastro di tempo:

Shay, Bri, Raina

ByNeshe Bryant
22 ott 2018

Data:

31 gen 1897 anni
Adesso
~ 127 years ago
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