Answer:
They were all inventors who made machine that worked on long distance communication!
They had been all inventors who made systems that labored on long-distance communication.
Service Pigeons can carry a message in addition than you would possibly anticipate; they have got been recognized to supply messages over 1,000km making them the earliest instance of lengthy distance verbal exchange. This is one of the reasons why they have been popular with the navy at some stage in this period of records.
Guglielmo Marconi - the daddy of long-distance radio communique - An engineer's tribute, abstract: on the event of the centennial, Marconi's epoch-making invention and discovery that made long-distance wireless verbal exchange possible, are remembered.
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