22 gen 1830 anni - 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.
Aggiunto al nastro di tempo:
Data:
22 gen 1830 anni
Adesso
~ 194 years ago
