21 nov 1897 año - J. J. Thomson discovers the electron.
Descripción:
In 1897 J. J. Thomson discovered the electron. He put two anodes into a vacuum-sealed tube and applied a high voltage between the two tubes. He noticed a stream of particles moving from the negative anode to the positive anode, these were electrons.Añadido al timeline:
fecha:
21 nov 1897 año
Ahora mismo
~ 126 years ago
