Owing to the nature of the structure of an electron, it follows, however, that every movement of an electron is accompanied by changes in the distribution of the electric strain or ether strain taking place throughout all surrounding space, and, as already explained, certain very rapid movements of the electrons have the effect of detaching closed lines of strain in the ether which move off through space, forming, when cyclically distributed, an electric wave.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
Then he receives $1.00 from his father and the process is repeated cyclically.
"Letters of a Radio-Engineer to His Son"
John Mills