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|  | Désiré Eugène Édouard BRANLY |  | |
| | Amiens
23.October.1844-Paris
24.March.1940 |
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| Detector of electromagnetic waves (coherer) | ||||
In
1888 with few resources in its laboratory of the Catholic Institute in
Paris studying the characteristics of certain metals exposed to
electromagnetic waves, and discovers the radio conductors "tube"
à
limaille ' "(see photo) that reveal the presence of electromagnetic
waves that will called 'Cohéreur' Coherer this important
detector
although rudimentary Marconi allow testing of the transmission of
wireless telegraphy. |  | |||