Why there is no frequency for the color brown?

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Brown does not have a specific frequency associated with it, similar to colors like white, gray, and purple, which are considered non-spectral colors. The perception of color is complex and subjective, influenced by both the physiology of the eye and the brain's interpretation, leading to phenomena like metamerism where different spectra can appear the same. Color measurement involves reflectance, light sources, and human color response curves, highlighting the subjective nature of color perception. Additionally, colors like brown and gray are perceived relative to more intense colors, emphasizing their contextual nature. Overall, the discussion underscores the intricate relationship between color perception, physical properties, and individual differences in vision.
  • #51
Drakkith said:
If you don't think someone's question deserves an answer, and you don't tell them, how will they learn to write better questions?

I guess you have a good point. But in order to be productive instead of distructive the "teacher" must know how to tell. Otherwise the message and the thing that was learned may conflict.

obs: the scientific way of interchanging experiences is a good subject. Much is to be bettered. But I think we are messing up with the OP. Thank you for your words. I guess I have learned something with you both.
 
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  • #52
@DaTario
It's a shame that you took such offense at my use of the word "lazy". You seem to be assuming things about the role of PF. It actually exists for the pleasure and interest of the contributors. There is really not much pleasure or interest in dishing out basic information that's readily available elsewhere on line. There is effort involved in producing as a good a definition as you can find in Wiki and where is the interest or reward, it PF is just 'dial an answer'?
A question that starts off for instance: "I have read that X is defined this way - how does that fit in with what I have observed about X?" will always get an interested response. That question would show a sign of effort.
You can test my claim in your next contribution to PF. Do a bit of homework first and your effort will be rewarded.
 
  • #53
Sophiecentaur, I don´t expect you to feel bad for speaking like you did. I have read all the contributions to my question. Some words went in and their meaning were unknown to me, so I asked. I refuse to accept your claim that my contact with the words metemeric, hue and saturation are effort free. I wasn´t lingering at my bed when these words simply appeared. I believe some PF contributors sometimes feel the pressure of having to contribute and your response to my question seems to reveals a bit about how you are dealing with this environment which is ultimately vonluntary. If you got paid to attend me, I would be worried to define seriously the concept of homework in order to ask you only after having done it. I am always doing homeworks. I have now here dozens of sheets of papers around me, each one with a different conchoid printed on it, and I may call my task cumbersome (albeit pleasant). Your use of the word lazy was not gentle at all.
 
  • #54
I'm going to go ahead and close the thread since it appears the original discussion is done and the thread has veered sharply off topic. Thank you to everyone who contributed.

Thread locked.
 
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