A Proposal for Sending and Receiving Moving-Picture Signals between the Planets Earth and Mars by Means of Electric Telescope
Here's a lovely piece of retro, a visualisation of the ideas of
Charles Cros by American illustrator
Roger Leyonmark. Leyonmark recalls reading Cros'
Study on the Means of Communication with the Planets (1869) while at a library in
Buffalo.
Cros, incidentally, didn't invent the
Nipkow disk however even if he had he probably would have missed out on all the credit.