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1 janv. 1842 - Joseph Henry, inventor de la telegrafía de hilos, demostró que con un circuito de descarga podía magnetizar agujas situadas en el sótano, dos pisos más abajo.

Ajouté au bande de temps:

HISTORIA DE REDES 1

ByJHON FREDY PARADA HERNANDEZ
31 mars 2019

Date:

1 janv. 1842
Maintenaint
~ Il y a 182 ans
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