Electric Waves: Being Researches on the Propagation of Electric Action with Finite Velocity Through SpaceHeinrich HertzEsaurito4,3Avvisami
Signalling Through Space Without Wires: Being a Description of the Work of Hertz & His SuccessorsHeinrich HertzEsaurito4,3Avvisami
Electric Waves: Being Researches on the Propagation of Electric Action With Finite Velocity Through Space / Authorised English TranslaHeinrich HertzEsaurito4,3Avvisami