The Invention of RadioThe Invention of Radio

The BeginningThe Beginning

James Clerk Maxwell developed the first James Clerk Maxwell developed the first radio-wave theorem in 1864.radio-wave theorem in 1864.

Hertz’s experimentsHertz’s experiments

Heinrich Hertz experimented with Maxwell’s thesis Heinrich Hertz experimented with Maxwell’s thesis in 1888.in 1888.

FollowersFollowers

Augusto Righi, an Augusto Righi, an Italian physicist, and Italian physicist, and

another scientist, another scientist, Temistocle Calzecchi-Temistocle Calzecchi-Onesti, continued and Onesti, continued and refined Hertz’s work.refined Hertz’s work.

Oliver LodgeOliver Lodge

In 1894, Oliver Lodge In 1894, Oliver Lodge named Temistocle’s named Temistocle’s famous "tube" the famous "tube" the

"coherer" and "coherer" and increased the increased the

reception gain of the reception gain of the hertzian waves. hertzian waves.

Italian inventorItalian inventor

Guglielmo Marconi sent Guglielmo Marconi sent and received his first and received his first radio signal in Italy in radio signal in Italy in

1895.1895.

Nikola TeslaNikola Tesla

Nikola Tesla is now credited with being the first Nikola Tesla is now credited with being the first person to patent radio technology; the Supreme person to patent radio technology; the Supreme

Court overturned Marconi's patent in 1943 in Court overturned Marconi's patent in 1943 in favor of Tesla.favor of Tesla.

The endThe end