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Posted: Sun May 18, 2014 11:17 am
Re: Hertz's Experiments
Posted: Mon May 19, 2014 10:41 am
I'm a physicist, not a historian, but I can answer some of this.
Hertz used VHF or UHF, so wavelengths of a metre or so. These would diffract around corners well: they require fairly large objects to cast shadows. I've not heard of him using single slit diffraction. The Hertz wiki page
has a nice diagram of his spark gap circuit.
Regarding Maxwell and Hertzian waves, Physclips shows simple but modern measurements of speed of light and speed of UHF radio at
http://www.animations.physics.unsw.edu. ... e-of-light