22 jan 1830 ano - Cathode Ray Tube Experiment was performed in 1838, Faraday noted that when passing a current through such a tube, an arc of electricity was observed. The arc started at the negative plate (known as the cathode) and traveled through the tube to the oppositely charged anode.
Adicionado na linha do tempo:
Data:
22 jan 1830 ano
Agora
~ 194 years ago
