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jan 1, 1837 - L'invention du télégraphe élécrtique

Description:

Samuel morse met au point ce télégraphe avec l'alphabet qui va avec, des suites de points et de traits que l'on appelle le code morse

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Les evolutions technologiques,comment communiquer a distance ?

Bystefan
29 Mar 2021
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Date:

jan 1, 1837
Now
~ 188 years ago

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