by Harry Dalek » Wed Jul 17, 2013 10:02 pm
I should of pointed out the newer issue is more interesting as it tells how it evolved or nearly didn't ...i think from the sounds of it it was the last mechanical television idea ...till these days with micro or nano vibrating mirrors projection ,so its still about just smaller these days.
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.