2 Resultat har hittats för "Fil:Refraction_of_Hertzian_waves_by_a_paraffin_lens_1897.png".

Fil:Refraction of Hertzian waves by a paraffin lens 1897.png

org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Experiment demonstrating refraction of microwaves by a paraffin lens...

Fil:Hertzian wave apparatus - Augusto Righi 1897.png

org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Microwave experimental apparatus built by Augusto Righi 1894...

Enciclo
Wikious
Sapientia
Scientia
Boobota
Anandapedia
Sagapedia
Wikithot