Thomas A Watson, electrical engineer, c 1876.

 
Thomas A Watson, electrical engineer, c 1876.
4 0 c m
 
33cm
actual image size: 25cm x 32cm

Description

Thomas A Watson (1854-1934), an electrical engineer who worked with Alexander Graham Bell on the development of the telephone. Together Watson and Bell undertook the first one-way voice transmision when Bell called to his asistant in the next room, "Mr. Watson, come here. I want you.". The mesage was communicated over copper via a liquid transmitter.

© Science Museum / Science & Society Picture Library

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