If everything is made out of atoms and atoms have no color where does color come from?
344738
Actually, this is a really hard one: color arises from light having different frequencies, and the different colors are reflected with varying efficiency from various substances: so a red color arises from a substance that reflects well low frequencies (red) and absorbs higher ones (blue and yellow).\n\nNow what determines in which way a given substance reflects light at different frequencies? That varies a lot: for starters, some atoms *are* in fact colored, that is, they reflect one frequency more  than another: chlorine gas is an example. This is also frequently the case for molecules (dyes). On the other hand, it is also often caused by some effect that cannot be traced back to the individual parts that make up the whole: think of a sand heap: clearly, none of the grains is a heap, nor is there any specific grain which gives the heap its peculiar properties. What makes a sand heap is just the large number of grains, all acting mutually one upon the other. A crowd, similarly, often does things you cannot really explain in terms of the individuals that make it up. Similarly, for example, a large number of copper atoms find a weird way of reflecting certain frequencies much more than others: it is a property of the whole substance that cannot be reduced to the individual copper atoms. Color, by the way, is not at all the only such property.
746571
D)supernovae. Every single material in the universe except helium came from supernovae
831106
Cells are colorless until they are stained. They color that they appear is then based on what type of stain was used. Hope that helps.
713932
The lines give away the atoms composition.  Meaning you can see absorption lines that only a certain element will produce.
275700
A primary color or colour is a color that cannot be created by mixing other colors in the gamut of a given color space. Primary colors may themselves be mixed to produce most of the colors in a given color space: mixing two primary colors produces what is generally called a secondary color, mixing a secondary with a primary produces what is sometimes called a tertiary color. Traditionally, the colors red, yellow, and blue are considered to be primary pigments in the art world. However those colors are not the same hue as the "red", "yellow" and "blue" used in alternate color systems. Many modern applications use primary additive colors of red, green and blue; and the primary pigments (i.e. subtractive primaries) of magenta, yellow, and cyan. If the color space is considered as a vector space, the primary colors can be regarded as a set of basis vectors for that space.
947929
There was only pure energy of which some formed into tiny bundles that fly in waves. We named those bundles of energy "photons". We named the size of waves that they fly in the "electromagnetic spectrum".  Photons can come together and form tiny shimmerings that we call "particles".  We also call those particles, "matter". Those particles can come together and form families that we named "atoms".  Atoms can come together as elements. Elements can come together and form compounds.  Compounds can come together and form organic compounds. Organic compounds can come together into lifeforms capable of consciousness and possessing senses. All "matter", including you, is made of a symphony of tiny shimmerings of photons, or pure energy.  Here is a real picture that we have recently made of the beginning of the Universe when all that energy appeared:\nhttp://www.princeton.edu/pr/pwb/03/0217/
918278
Without light you cannot see anything.\n\nWhy?\nBecause the light (which is consist of the colors (V I B G Y O R)\nstrikes an object. Depending upon the object, the light may or may not reflect some of the colors.\n\nWhen an object reflects some light, the object will then have a color.\nFor example, if the object absorbs all the color from the light except red, the red will be reflected to your eyes. This will make you see the color red.\nThat is, a red rose is color red because it reflects rhe color and it goes to your eyes. So you see color red.\n\nWhen an object reflects all light ( none of the color was absorb), then the object will appear white (that is the combinatio of all the colors).\n\nWhen an object reflect only green and blue, the object will appear to your eyes as cyan (correct me if I'm wrong, coz if I'm not mistaken, the combination of green and blue is cyan).\n\nThose object which absorbs all the color that composed the light appears black.\nBecause no light is bouncing back and go to your eyes.\nAnd we all know that black is the absence of any color.
140410
Not sure what you mean: a transparent substance that, when cut/sliced/whatever, will display coloration?\n\nDue to a chemical reaction with the atmosphere? Try a gelatinous material with a fugitive acid and phenolphtalein. As the acid evaporates, the pH will rise beyond the equilibrium of phenolphtalein. (Or some other indicator changing from colorless to colored, closer to neutral.)\n\n\nSometimes coloration can result from surface structure rather than dyes: the brilliant blue butterfly wings of some South-American species result from nano-structures eliminating all non-blue light. Assuming that your substance  is connected by a liquid of similar refractory index, the surface effect will only occur once the surface is hurt and the liquid is allowed to dry away.
421471
In pigments (like paint) yellow and blue make green.\n\nIn lights, if you mix red and green lights, you get yellow light. If you add in blue light, you get white light, so for lights, yellow and blue make white.
398344
Color is a function of the wavelength of light reaching an object and the reflective properties of the object. If the illumination is a different color, the object will have a different color.  Let's assume white light to be the standard, then a color will be the same if you are near an object whether there is air or not.  If you are at the surface of the earth and the object is in the sky, atmospheric effects will change the color possibly (like our blue sky).
391994
Each color is obtained by using a different chemical or mixture of chemicals.  Many dyes and pigments involve heavy metal compounds, such as iron and copper.  For instance, iron oxide (rust) is used in some paints.  The color of a particular compound is determined by the frequencies of light it absorbs.
409692
this is a kind of question without answer... Abstract things as no colour.... its depends on the way we feel... usually people say it is white because is a neutral colour... goes well with everythinh, what we ask from peace....so, we can say peace is a neutral thing.... nobody will think peace and think on red same time...
144504
no, it does not. in physics, balck is not a colour. in the visible part of the electromagnetic spectrum, there is no black. a total absence of any colour is represented by black in physics. black holes are so named because they have such a strong gravitational force that they even attract light and do not allow it to escape. hence the name
728020
any solution gives colour due to the fact that the outermost electrons absorb the energy and move to a highre orbit corrospondingly. when they come back to their orignal state, the enegry is emitted in the form of photons, which may have the wavelength crrspndngly to a colour.
38508
ah, i actually remember thinking that once... i always had a lot of questions like that, always so curious about stuff... that's why im a physics major, it explains so much... actually, while we may not be tasting or smelling the same thing, we are all seeing the same colors.  this is because each color has corrosponding wavelengths and frequencies of light on the electromagnetic spectrum.  Only a very small portion of this spectrum is even visible light, and we all agree on that.  the colors you see from objects are just the wavelenghts of light that are not absorbed by that object, so therefore are reflected. so we are definately all seeing the same frequencies of light... its easier to understand with sound, if you pick different frequencies, it's a higher or lower pitch.  we can all definately agree on the pitches of sound because we can agree on whether or not the pith is higher than another pitch. if you pick a frequency on the electromagnetic spectrum in the visible light range, that frequency will correspond to a certain color. violet is the color with the wavelength of the highest frequency, meaning it has the highest energy(E=hf where h is planck's constant so energy is directly proportional to frequency.) red has the lowest frequency, and therefore energy. the colors go in order of lowest to highest energy as follows: red, orange, yellow, green, blue, violet. it is is definate that what everyone views as violet is what has the highest energy, and what everyone views as red has the lowest.  and the colors as we know them, kind of blend into each other as you go up in energy, like starting with red you can have red orange and keep adding orange till you get to orange, then add some yellow and so on.. the colors blend nicely. if someone viewed lets say green instead of orange... well then red and green wouldnt mix so well now would they? if you think about it, the colors go "up" in energy steadily just as sound goes up in pitch steadily, so we do all view colors the same.  i hope i conveyed my thoughts properly and that made sense :)
724837
Yes, it would be black. The colour of object depends on what wavelengths of light are absorbed and which are reflected back by an object essentially.\n\nSo if all wavelengths of light are absorbed then it appears black, and if everything is reflected then it appears white. Every other colour we see depends again on the wavelength that is reflected.
63599
check out the law of conservation of matter. it says that no matter what chemical reaction you look at matter can never be created nor destroyed.\nthat means the number of atoms of each type must be the same before and after a reaction takes place.