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Forums - General Discussion - If I could not see colors could you help me perceive them?

Brown is what comes out your butt. Green is plants. Blue is water and the sky. Black is night.  Purple is Barney.  White is old people in Congress. 



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OP: Your question is terrible. Re-read your question and understand why for yourself.



Player2 said:
cyberninja45 said:
Player2 said:

Blue: Electromagnetic radiation with a 450-495nm wavelength.

And how does that look?

Different colors have different wavelengths, and therefore have different diffraction angles. For example, using a non-monocromatic laser and a mirror to cause diffraction we can separate each wavelength (color) of the laser beam:

On the right figure, blue is on the left and green is on the right, no matter if you can't differentiate the colours, or see them different.

Instead of doing that, we can use different monocromatic lasers (one red, other blue, yellow, etc), each one will suffer diffraction at a different angle.

 

So we can help somebody to differentiate between colors, but we can't explain how blue "looks like" to someone who never have seen it.


I appreciate the illustrations on the properties of light, if I remember my physics correctly yes white light diffracts at different angles through a medium of one density (eg air) to another density (eg glass prism) revealing the spectrum of light due to the different wavelength and frequencies they have, anyway your picture demonstrates it better.

But it is the last part of your post I am addressing why is it we cannot explain what it looks like.



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NolSinkler said:
OP: Your question is terrible. Re-read your question and understand why for yourself.

I simplified the question. Which part of the question is a problem?



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IIIIITHE1IIIII said:
cyberninja45 said:
IIIIITHE1IIIII said:
Well, it's just as impossible as coming up with a new colour or trying to imagine how a world with an additional dimension would be like.

Why is it impossible to come up with a new colour, whats holding us back?


Well, it's simply the way things are. All colours range from infrared to ultraviolet, and the combinations between all those colours.

Well those are the colors of the spectrum that the human eye can detect.

But lets for arguments sake use the electromagmetic spectrum and varying wavelenghts of light, this also means that there are many  different "colors" that we don't detect with our eyes (due to the size of their wavelenghts). If by some form of evolution in the future we were able to detect these light of different wavelenghts and frequencies with our eyes would our brain perceive them as "new colors"?



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What If people look at colors differently than others? for example my "Green" looks "Red" to other people, but since their green is red, they call it red.

What if?



Solid-Stark said:

No. Colors are quale, therefore properties of mental states (not physical).

An educated man--nice to see.



It's very difficult to describe colors to someone who can't see them. And it's even harder for someone to try to imagine a color they can't see.

For example, if you lived in a 2D world, it would be impossible to imagine a third dimension.

Or for us to imagine what we would see if we could see ultraviolet light. Say there is this person that can see UV light. It would be very hard for him to describe it to us, and impossible for us to imagine what it would look like.



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PullusPardus said:
What If people look at colors differently than others? for example my "Green" looks "Red" to other people, but since their green is red, they call it red.

What if?


That is possible. Which leads to what are the implications of this, like are they just imaginary?



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ECM said:
Solid-Stark said:

No. Colors are quale, therefore properties of mental states (not physical).

An educated man--nice to see.


Yes they are quale, and something the mind creates.

So if  you cannot describe the perception of color to someone else as it is something in the mind, does that make it imaginary?



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