I had, of course, heard about the mechanical TV systems that pre-dated the CRT-based “electronic TV” invented by Philo Farnsworth. But I never really understood how they worked until I saw this Hack-A-Day article by Jenny List. And wow, I see it now. Nipkow discs. Color TV. Parts made in a 3D printer. Excellent.
Here is Jenny’s post: https://hackaday.com/2022/05/27/3d-print-a-colour-tv/
Here’s the IEEE Spectrum article by Markus Mierse (the brilliant fellow who built this amazing device): https://spectrum.ieee.org/mechanical-tv
Be sure to watch the video (above). Take a look at the awesome quality of the 32 line color TV picture. And check out Marcus’s amazingly beautiful construction. (Note: Built on a wooden base).
Marcus Mierse’s Modern Mechanical Color TV
I recall reading that the first color TV images broadcast by the Apollo astronauts were from a hand-held camera based on a color wheel.
http://nbtv.org/
thats really not related to this at all