Don't use a green laser in the cold!
Added 2020-08-30 17:18:55 +0000 UTCTime to bring some public attention to the risk of using green DPSS lasers in the cold.
I know green lasers are used to point out stars on frost-clear nights, and Christmas decoration lasers are used outside at winter too.
But are people aware of the invisible hazard from an apparently non-working laser? In this video I try to show how bad it can be.
And as a sidetrack, I test the wavelength of my IR remotes :)
