I know it has something to deal with the color spectrum, however, I am unsure as to how they capture a certain color.
128031
It's the way the molecules are formed in any particular "color" item and the light that gets absorbed by those molecules.  The light that doesn't light absorbed is the color you see.
97205
Color blindness is dependent on the visual spectra.  OK..thats lots of jargon so here is simple way to look at it.  You visual light is while however if you put a prism you will see rainbow colors (remeber prism experiemnt?).  Well, your eye is designed to synthesize white visual light into optical shades (rainbow) and hence one can see colors.\n\nNow two ends of this color spectra are Blue and Red and everything in between.Depending upon, where there is a deficiency in your prism (eye), it can vary in color interpreation.  Hence, it varies with ansers below. There have been examples in the history that baristors (lawyers in English court) went to court with Red coat (instead black) and judges thought that person was a prankster...this is before color blindness was identified..
518942
It means that the experiment was to find out what colours were present in a food colour. Most colours are actually a mixture of colours which can be separated by TLC
101063
i believe it is refraction, the ridges bend the light into certain colours.  like the rainbow effect in a prism.
149734
Web_Maven got it right but only if you already know the right answer. Here is how it goes.\n \nThe first part you got, when you mix lights of color red, green and blue you can get other colors and white. But why doesn't this work with pigments? Because pigments do not emit light, what they do, is absorb all the other colors except the one(s) you see. If you throw white light on a red pigment, it will absorb all colors except red. If you mix the three pigments, the mix absorbs all colors.
350562
You are right! Atomic structure has everything to do with what wavelengths are absorbed, and which ones are reflected. I works with light, and it works with radio waves... Thats how they make stealth aircraft. Funny thing about copper... when powdered and burned, it makes a pretty green color!
387371
Is it supposed to look like something specific, because all I see are a couple of blobs
338003
It contains both ultraviolet and inferred. I forget which scientist did it but he was measuring the different temperatures of the different colors. He moved the thermometer past red and got another reading, proving it. If you go here: http://ls7pm3.gsfc.nasa.gov/whatsRM/em.html and scroll all the way to the bottom you can see the rainbow and the parts we can see.
541587
I would also pick A as the correct answer.\n\nB. the camera might or might not have to be adjusted depending on how much light is being reflected into the picture.\n\nC. A reflector may or may not prevent one side othe image from appearing lighter or darker depending on the actual lighting of the scene.\n\nD. because B & C are not right
3988
Most likely they simply measure the number of rods and cones. Since cones are resonsible for color vision and differernt kinds of cones are sensitive to different wave lenghts it should be trivial (in an adademic sense) to determine what range of color a particular eye ball can detect.
187890
When you see colors in the rock, it's an imperfection.  Hold it to a light.  But ultimately take it to a jewler.
230222
Given a bit of thought:  \nIf you are basing this decoding entirely on light, then there is a possibility that occurred to me.  Your mention of polarized ink gave me an idea.  \n\nFrom the basic idea, the color white is merely something that reflects all of the visible wavelengths back to you, not absorbing any colors at all.  This makes it seem very bright, because all of that energy reaches your eyes.  \n\nIf you can create a pure white ink (or same white as the paper) from pigments -- probably water-based so that they would not form texture -- then you may be able to create a white ink that is truly a mixture of the wavelengths.  Then if you have a pair of glasses that filter one color (like a camera), you would see the remaining colors and the writing would be visible.\n\nNow, I have never tried this and don't know that it would work, but given the energies of the color wavelengths, I think it would be easier to see if you filter the blue/violet end of the spectrum so that you see the red end.  This should show with more contrast, making it easier to read.  \n\nI do not know that it would be possible to so precisely filter one particular color.  If you create this white ink, it is possible that some mixing would mean your colors would not be perfect.  If you don't see anything right away, try all 7 combinations of the filters for a camera lens -- red blue and yellow each alone, two of each mixed, and all three together.  (And any others you can find.)  \n\nThis is just a springboard idea, and I do not know that it would work.  But if you do get it working let me know!  I would be very interested in knowing if my hypothesis has a practical application!
84261
dunnerzplant pretty much has it right.  To give a more basic explanation, the retina has an array of "rods and cones" laid out like pixels on a tv screen, and they are all connected to the visual cortex that has a similar array of perceptive neurons that can piece all fo the signals together as a picture.\n\nDifferent cells in the retina have different chemicals that are sensitive to different colors, or wavelengths of light.  When light of that color strike that cell, the chemical does a slight shape-shift that ignites a mechanism to change the cell's output of neuroreceptors, liek a switch.  Once the light disappears, the photochemical shifts back to its latent state, and the perception of that color also ceases.\n\nIt's pretty cool stuff, really.  Any good Molecular and Cellular Biology textbook will give a good description of how the whole thing works.  I think even a basic college Biology text will give a rudimentary treatment of the subject.
263348
with travelling electrons.depending on their wavelength,colours are formed
443607
duplicate your art layer\n\nunder \nImage > Adjustments > hue Saturation \ncheck Colorize \n\nplay with the settings
624127
If there are Colours Join the Colors same to the same... Like I mean join the same colors... together...\n\nok.. i actually have no idea..\n\nMaybe it would help..
468300
There are two aspects to color:  pigment and wavelength.  Pigment is an aspect of the object we're talking about when we say "what color is it?"  Wavelength is an aspect of light, which is made up of different wavelengths.  White light contains all the possible wavelengths.  \n\nWhen light hits pigment, some of these wavelengths are absorbed and some are reflected.  A black pigment absorbs all the wavelengths; no color is reflected, so there is the absence of color--black.  When something looks red, it is because wavelengths in the red spectrum  of light are being reflected.  \n\nThings look different in different lights because not all light is white light.  Something will look different under a light bulb than under sunlight.\n\nLisaJay\n\nhttp://www.eclecticdetective.blogspot.com