Ask Lemmy
A Fediverse community for open-ended, thought provoking questions
Please don't post about US Politics.
Rules: (interactive)
1) Be nice and; have fun
Doxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them
2) All posts must end with a '?'
This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?
3) No spam
Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.
4) NSFW is okay, within reason
Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com.
NSFW comments should be restricted to posts tagged [NSFW].
5) This is not a support community.
It is not a place for 'how do I?', type questions.
If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.
Reminder: The terms of service apply here too.
Partnered Communities:
Logo design credit goes to: tubbadu
view the rest of the comments
Our retinas are linked up to the portion of the brain that deals with circadian cycles. We evolved to feel more wakeful upon exposure to blue light because that's the color of the sky at midday. Our brains associate red light with sunset, a time where humans have adapted to feel sleepy as opposed to wakeful.
If humans instead evolved on Mars, assuming the lack of an atmosphere and magnetosphere was not an issue, this would be the opposite! Martians would feel more awake on exposure to warmer colored light and sleepy on exposure to blue light, since on Mars, the sunsets are blue!
uh what? why?
"Fine dust in the atmosphere permits blue light to penetrate the atmosphere more efficiently than colors with longer wavelengths.*
whAaaat.
does the red wavelengths get caught in the red dust or something?
this is such a good fact.
This the phenomenon: https://en.wikipedia.org/wiki/Rayleigh_scattering
i see, thanks. The size of atmospheric particles determines the color.
“Mars”. I know LV426 when I see it!