Wavelengths

Comments

• 404@lemmy.zip ⁨18⁩ ⁨hours⁩ ago

  Fun fact! Since we (primates) have three cone cell types, we only really see three colours (red, green, blue). The rest are an illusion. Some animals, like fish and birds, have four or five cone cell types.

  This means that for animals that have a cone cell type for yellow, an sunflower displayed on an LCD screen will not have the same color to them as a real sunflower. The screen will show a mixture of red and green (which we perceive as yellow) and NOT yellow.

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  • notabot@piefed.social ⁨13⁩ ⁨hours⁩ ago

    Mantis shrimps seem to be the champions of this. They have between 12 and 16 different types of cones, spanning into the ultraviolet. They have a very different visual processing system to most animals though, so despite all the cones, they don’t seem to synthesise shades between them, so they probably don’t have a very vivid image.

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    • rockerface@lemmy.cafe ⁨9⁩ ⁨hours⁩ ago

      They basically have most of visual processing offloaded to cones because of how simplistic their nervous system has to be.

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  • Viceversa@lemmy.world ⁨13⁩ ⁨hours⁩ ago

    It’s more complicated than that. Colours are not some discrete things, it’s a spectra. Even one colour is a bunch of wavelengths.

    So in truth each eye cone of ours perceives a spectre.

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  • tuxiqae@lemmy.dbzer0.com ⁨16⁩ ⁨hours⁩ ago

    But real sunflowers are (and correct me if I’m wrong) yellow colored, so why LCD screens don’t do tue same thing? Is it because they are based upon RGB? If so, that kinda feels like an issue with screens and not with our lack of cones

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    • 404@lemmy.zip ⁨16⁩ ⁨hours⁩ ago

      Yes! We developed screens to suit our eyes. Pixels look like this: b2c-contenthub.com/…/subpixels-monitor-types.jpg

      It’s not an issue, it’s just that they’re built to be viewed by three-cone creatures.

      Here is a great video by Steve Mould about cameras and true color: m.youtube.com/watch?v=-DyrBDsKA5s

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    • Chapo_is_Red@hexbear.net ⁨16⁩ ⁨hours⁩ ago

      The TVs don’t have “yellow” cuz we don’t have the cones. TVs are built by humans for the use of other humans. Why would we design them to produce light that we don’t have the cones for?

      If we all only saw black and white, we wouldn’t have developed TVs with black and white. If we were all blind, we wouldn’t have developed TVs at all

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• Mac@mander.xyz ⁨11⁩ ⁨hours⁩ ago

  What is “color”?

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  • GreenShimada@lemmy.world ⁨9⁩ ⁨hours⁩ ago

    Baby don’t hurt me,

    No more.

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  • HeyThisIsntTheYMCA@lemmy.world ⁨10⁩ ⁨hours⁩ ago

    It’s what happens when you spell “bolor” with a K.

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    • OpenStars@piefed.social ⁨9⁩ ⁨hours⁩ ago

      karl’s koloring korner… actually it seems best to knever spell anything at all beginning with a “k”, ya’now?

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• cRazi_man@europe.pub ⁨17⁩ ⁨hours⁩ ago

  Brain working as expected. Thank you for the confirmation. I did have some doubts before.

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• Knoxvomica@lemmy.ca ⁨14⁩ ⁨hours⁩ ago

  Ohhhhhhhhhhhhhhhhhhh

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• tatterdemalion@programming.dev ⁨15⁩ ⁨hours⁩ ago

  From the thumbnail I just see polar bears with tiddies.

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• sp3ctr4l@lemmy.dbzer0.com ⁨20⁩ ⁨hours⁩ ago

  Oh my god this is so stupid but I love it!

  Got an actual belly laugh out of me, oh god, I’m crying… thank you OP.

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• lugal@sopuli.xyz ⁨22⁩ ⁨hours⁩ ago

  No, this must be an illusion. All ice bears are white, even albinos

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• mr_account@lemmy.world ⁨22⁩ ⁨hours⁩ ago

  Gummy Bears’ new shape is pretty detailed

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• HotsauceHurricane@lemmy.world ⁨22⁩ ⁨hours⁩ ago

  Stupid brain.

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• Nangijala@feddit.dk ⁨18⁩ ⁨hours⁩ ago

  And magenta is a lie Dx

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• Cort@lemmy.world ⁨14⁩ ⁨hours⁩ ago

  What do colorblind people see? Any color blind people out there?

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  • Corkyskog@sh.itjust.works ⁨14⁩ ⁨hours⁩ ago

    Polar bears

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• athatet@lemmy.zip ⁨16⁩ ⁨hours⁩ ago

  I’m no polar bear but I don’t think the seeing happens in the brain.

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  • Viceversa@lemmy.world ⁨13⁩ ⁨hours⁩ ago

    But it is. Eyes just receive light.

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