• lemmy689@lemmy.sdf.org
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    11 months ago

    Brown, in physics, low-intensity light with a wavelength of about 600 nanometres in the visible spectrum. In art, brown is a colour between red and yellow and has low saturation.

  • AFK BRB Chocolate@lemmy.world
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    11 months ago

    Not sure why you say that. With the right filter, you can project a light of any color. What makes you think brown is special?

    • CarbonIceDragon@pawb.social
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      11 months ago

      So far as I understand, brown isn’t really a proper wavelength of light on the spectrum (there are a number of colors like that actually), rather, it’s a dark orange. So if you made a brown colored translucent filter and shone a light through it, you’ll actually get orange light, just presumably less of that light making it through than from a more saturated orange. It’s sorta like saying you can get black light by putting a black filter over a light projector: you’ll get black at the projection area I suppose if no other illumination is there, but there would be no black light, you’d just get that color by blocking the light entirely.

    • Pratai@lemmy.caOP
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      11 months ago

      Go ahead and try it. Take a picture even. It’ll come out orange- bet me.

      • AFK BRB Chocolate@lemmy.world
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        11 months ago

        Riddle me this: if there’s no such thing as brown light, how do you see the color brown on your phone screen?

        • m-p{3}@lemmy.ca
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          11 months ago

          There isn’t a specific wavelength for the color “brown” (non-spectral color), unlike the primary spectral colors such as red (between 620 to 750nm), green (520 to 570nm) or blue (450 to 495nm).

          What we perceive as brown will often been a combination of red and orange (590 to 620nm) wavelengths with a reduced intensity. On an non-HDR monitor, which uses RGB pixels with 255-levels of intensity, it could be represented as R=77, G=27, B=00. Grouped tightly enough, this combination of red and green wavelengths will provide a perception of the color we call “brown”.

          • AFK BRB Chocolate@lemmy.world
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            11 months ago

            Grouped tightly enough, this combination of red and green wavelengths will provide a perception of the color we call “brown”

            If you defined “brown,” you’d have to do it that way - by describing the wavelengths that we perceived as that color. The fact that your phone screen - a technology that works by emitting light - can display brown means there’s light that we call “brown.” It may happen that is really a dark orange, in much the same way that pink is a light red, but so what? It’s light and we see it as brown. Brown light.

        • CarbonIceDragon@pawb.social
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          11 months ago

          By it emitting orange light (or the combination of rgb lights that add up to orange anyway), but only a little bit of it compared to what it would do if you wanted it to actually display orange.

        • Pratai@lemmy.caOP
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          11 months ago

          Get a Philips color changing bulb. Open the app- Find brown.

          Case rested.

          I never said brown as a COLOR. doesn’t exist. I said brown LIGHT doesn’t. Your argument could have been the same if you said “Why do I see brown colors on TV?”

          Go look it up. Science is with me on this.

          • PastyWaterSnake@lemmy.world
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            11 months ago

            I get what you’re saying, but color is weird. There’s a specific term to describe colors that come from light sources, and colors that are a result of an object absorbing light. Brown is more the result of a lack of color

            Don’t take my image too seriously, it’s incredibly cherry-picked and not meant to serve as some sort of debate point. Although it does look like a very light shade of brown IRL…

            • Pratai@lemmy.caOP
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              11 months ago

              I get what you’re saying, but that’s the stealing yellow light on a brown or tan surface. What I mean is:

              Imagine a laser light. Now imagine one colored brown. You can’t. But orange, purple, green, etc… all can cast light. Brown cannot.