4 ms·
Well, IIRC, theatrical lights use parabolic reflectors to focus a non-point source into a point on a lens, so that might be a good place to start.
by gshdg 7y ago
Well, IIRC, theatrical lights use parabolic reflectors to focus a non-point source into a point on a lens, so that might be a good place to start.
- lonelappde 6y agoLight and sound gets to ignore gravity.
- justinator 6y agoHaha well light can, if far enough away from a black hole!
- deleted 6y ago[deleted]