Timeline for Why does paint mix to produce black, but light mix to produce white? [duplicate]
Current License: CC BY-SA 4.0
18 events
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| Jan 8, 2023 at 21:18 | comment | added | William Martens | @CortAmmon funnily enough it is the first result of google now. 8-) | |
| Sep 27, 2018 at 9:37 | history | edited | knzhou | CC BY-SA 4.0 |
edited title
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| Sep 14, 2018 at 15:12 | vote | accept | Zirc | ||
| Sep 14, 2018 at 15:05 | vote | accept | Zirc | ||
| Sep 14, 2018 at 15:12 | |||||
| Sep 14, 2018 at 6:32 | history | closed |
Chris♦ user191954 John Rennie visible-light Users with the visible-light badge can single-handedly close visible-light questions as duplicates and reopen them as needed. |
Duplicate of Why does mixing every paint colour produce gray instead of white? | |
| Sep 13, 2018 at 23:46 | comment | added | Cort Ammon | If the answers you get here do not give you enough information, you could try Google. Googling the title of your question yields a treasure trove of sites answering this question in various ways. | |
| Sep 13, 2018 at 17:58 | answer | added | Kevin | timeline score: 5 | |
| Sep 13, 2018 at 17:55 | review | Close votes | |||
| Sep 14, 2018 at 6:32 | |||||
| Sep 13, 2018 at 16:54 | review | Suggested edits | |||
| Sep 13, 2018 at 17:37 | |||||
| Sep 13, 2018 at 16:00 | comment | added | user205719 | Ink is different. You can get black by mixing different colors of ink. That's because ink doesn't reflect light, it transmits light. It's the paper underneath that reflects the light, and the ink colors the reflected light by absorbing some of it. The more different inks you add to an ink spot, the more light is absorbed. And if it absorbs enough light, then it looks black. | |
| Sep 13, 2018 at 15:58 | comment | added | user205719 | You can't get black by mixing different colored paints. Paint gets its color from opaque particles of pigment. All of the light reflected by a paint spot is reflected by the top-layer of particles. If you mix red paint and blue paint, the red particles in the top layer will reflect red light, and the blue particles will reflect blue light. But the only way you can get black would be if none of the pigment particles reflected any light. You can't get black by mixing different colors of light. | |
| Sep 13, 2018 at 7:55 | comment | added | Ister | Just to add to existing answers (not an answer itself) - this is precisely why monitors that produce light use RGB palette while print uses CMY(K). CMY is actually subtracting RGB - if you subtract from white light Red, Green or Blue you get respectively Yellow, Magenta or Cyan. So you're also operating on the same principle of applying the change to only one colour respective to one of the cone types in our eyes at a time. Contrast is added as there are always some wavelengths deflected even if you mix all 3 paints. Thus adding a black to the pallete helps to resolve that (to some level). | |
| Sep 13, 2018 at 6:00 | history | tweeted | twitter.com/StackPhysics/status/1040118053302935554 | ||
| Sep 13, 2018 at 2:50 | vote | accept | Zirc | ||
| Sep 14, 2018 at 15:05 | |||||
| Sep 13, 2018 at 0:45 | answer | added | EuklidAlexandria | timeline score: 22 | |
| Sep 13, 2018 at 0:40 | comment | added | Alfred Centauri | Are you familiar with the additive / subtractive color distinction? | |
| Sep 13, 2018 at 0:39 | answer | added | Gabriel Golfetti | timeline score: 55 | |
| Sep 13, 2018 at 0:22 | history | asked | Zirc | CC BY-SA 4.0 |