scottdave Jan 13, 2019 That was interesting. I've seen videos showing how certain substance absorb UV then emit visible light, but this was the first using a UV camera.
That was interesting. I've seen videos showing how certain substance absorb UV then emit visible light, but this was the first using a UV camera.
scottdave Jan 16, 2019 5.00 star(s) I had known that certain substances absorb UV then emit visible light, but I hadn't thought about how it looks to "see in UV".
I had known that certain substances absorb UV then emit visible light, but I hadn't thought about how it looks to "see in UV".
