Commons Public Domain Mark 1.0falsefalse English Diagram of Heinrich Hertz's first radio transmitter Turkish Heinrich Hertz'in ilk radyo vericisinin diyagramı...
metal attached to wooden frame focuses radio waves from dipole antenna into a beam English Drawing by Heinrich Hertz of his 1893 spark radio transmitter...
org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English The setup of Hertz's experiment on EM waves published in 1888...