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Interesting, i've read in the past that blue lights are used sometimes in places where they want to dissuade people from intravenous drug use because the blue l
by Simulacra 1mo ago
Interesting, i've read in the past that blue lights are used sometimes in places where they want to dissuade people from intravenous drug use because the blue light makes it harder to find a vein. I wonder if that qualifies as fine detail.
- mister_mort 1mo agoThe hospital toilets in Melbourne definitely have that setup. It was weird seeing basically every surface as just a shade of blue and nothing else. I do wonder - now that most people have a phone with a flashlight - would not the druggies illuminate their own arms with white light and not be too bothered?
- fpoling 1mo agoThe same is in many public toilets in Norway. I suppose holding both a syringe and a source of light at the same time is not that convenient.
- jacobolus 1mo agoThat's not at all about fine detail, but is about relative amounts of absorption/reflection of the light between skin vs. vein. See https://en.wikipedia.org/wiki/Metamerism_(color) https://en.wikipedia.org/wiki/Metamerism_(color)
- AngryData 1mo agoWe should also note that it is a gimmick meant to sell expensive specialty bulbs. Addicts don't need good light to find a vein. And even if it was a problem they still have a lighter and/or phone.