2 "Ficheiro:Hertzian_wave_apparatus_-_Augusto_Righi_1897.png".

Ficheiro: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...

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

DescriptionRefraction of Hertzian waves by a paraffin lens 1897.png English: Early experiment demonstrating refraction of microwaves by a paraffin lens...

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