3 ms·

0% is also the non-pedantic answer: https://en.wikipedia.org/wiki/Sunlight https://en.wikipedia.org/wiki/Sunlight and https://commons.wikimedia.org/wiki/File:So

by zamfi 6y ago

0% is also the non-pedantic answer: https://en.wikipedia.org/wiki/Sunlight https://en.wikipedia.org/wiki/Sunlight and https://commons.wikimedia.org/wiki/File:Solar_spectrum_en.svg https://commons.wikimedia.org/wiki/File:Solar_spectrum_en.sv... 222nm is blocked by the (upper, I believe) atmosphere.

gonzo41 6y ago
Just wait for all the deniers to start smashing lights. Hopefully this is a nice easy way to safely deal with this issue. Combined with masks. It seems like a way you could really clamp down.