When people like Bell and Marconi invented telephones and radios, you have to wonder who they talked to for testing. After all, they had the first device. [Jeff] had a similar problem. He got a 10 ...

videoThe invention of the telephone and how it changed society A description of the major scientific invention of the telephone by Alexander Graham Bell in 1876. Trial of Baird and Marconi - E.M.I ...

Marconi / EMI won the competition and this led ... the major scientific invention of the telephone by Alexander Graham Bell in 1876. The invention of wireless communication by Guglielmo Marconi.