this post was submitted on 24 Nov 2024
194 points (88.2% liked)
196
17057 readers
1362 users here now
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
Other rules
Behavior rules:
- No bigotry (transphobia, racism, etc…)
- No genocide denial
- No support for authoritarian behaviour (incl. Tankies)
- No namecalling
- Accounts from lemmygrad.ml, threads.net, or hexbear.net are held to higher standards
- Other things seen as cleary bad
Posting rules:
- No AI generated content (DALL-E etc…)
- No advertisements
- No gore / violence
- Mutual aid posts require verification from the mods first
NSFW: NSFW content is permitted but it must be tagged and have content warnings. Anything that doesn't adhere to this will be removed. Content warnings should be added like: [penis], [explicit description of sex]. Non-sexualized breasts of any gender are not considered inappropriate and therefore do not need to be blurred/tagged.
If you have any questions, feel free to contact us on our matrix channel or email.
Other 196's:
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
That's not true though. Yellow is a very real wavelength. The fact that we don't have unique receptors for it changes nothing about it's nature. Also our eyes are not being tricked into anything, they just pass on the signal they get. Our brain sometimes plays tricks on itself. But interpreting red and green signal as yellow means getting closer to the physical truth, not further from it.
All receptors are always triggered for all wavelengths we can see, just some more than others. Different color have different ratios. An exactly 540 nm green light would still trigger all 3. It is all your brain doing the processing and those 3 primary colors of our usually 3 cone cells are the opposite of spectrally pure. Otherwise you would not even be able to see those mixed colors.