Description:
(British Electrical Engineer and Physicist Who Invented the First 'Thermionic Valve' or 'Vacuum Tube') John Ambrose Fleming was an English electrical engineer and physicist. He is known for inventing the first thermionic valve or vacuum tube and designing the radio transmitter with which the first transatlantic radio transmission was made. Along with Douglas Dewar and Bernard Acworth, he helped establish the Evolution Protest Movement. Fleming was also a noted photographer and artist.