2nd March 1791: Frenchman Claude Chappe sends the first message by semaphore machine
HistoryPod - Podcast készítő Scott Allsop
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Chappe was born into a wealthy family in 1763 and originally trained as a member of the ...
HistoryPod - Podcast készítő Scott Allsop
Chappe was born into a wealthy family in 1763 and originally trained as a member of the ...