why, in a night light, when white light is produced, color light appears on the walls near it.(technically)?
371665
Well.. you say white light it's not refracted by glass... Then if that's true, there shouldn't be a rainbow EVER, no?\nThat's the point, white light it's composed by several colors, that's why it's white. When it goes through a glass, it WILL be refracted, causing it to separate into different spectres of light. Of course, only a minimal part of it will be refracted, for those glasses are constructed in such a way to prevent it from doing so.
1175836
well, first they do not show up black on white. they show up a deep shade of gray, that appears light on dark and dark on light becuase of the amount of contrast
337135
It is because of the air bending the light slightly. Its the same as shining a light through water, but the effects are less pronounced.
427556
This might help:  An object color is determined by the wavelengths of light that it reflects.  Objects that are "white" aren't really white...the objects merely reflect all wavelengths of light (when you combine all wavelengths you get white light).  Objects that are "black", appear that way because they reflect back little or no light...absorbing it all.  It's why you don't want to wear black on a sunny day....your shirt will absorb a ton of the light and get hot.
1170905
foam will always be white or a light shade of colors because when light enters the foam structure it deffuses through all the little windows which makes it to appear whitish as for water the light passes through and none of the light gets reflected to you so it seems colorless
403379
Standard light bulbs contain a tungsten filament connected to electrical contacts inside a vacuum so that there is no (or very little oxygen).  When electricity flows through the high-resistance filament, the filament glows white hot, giving off light and heat.\n\nOther types of light bulbs (fluorescent, halogen, etc.) work a little differently.  If you want information on those, just say the word.
897035
White light is actually made of all the colors of the "visible spectrum", which ranges from red to violet. A prism or a rainbow shows these colors by sorting light according to wavelength.\n\nLight passing through a completely transparent medium, like a pane of glass, will not show much difference.\n\nLight passing through a colored medium will allow mostly light of the color's wavelength to pass through, so you see that color.\n\nLight reflected off an object shows a color if the object reflects light of that frequency (wavelength).\n\nThe colors have to be there first. Color is not "acquired" by light.
601948
Originally a spectrum was what is now called a spectre, i.e., a phantom or apparition.\n\nWhen white light is passed through a prism, colours 'appear' as if from nowhere, so this is where the link comes from
542166
White light is not split up by different particles in the air (the exception are water droplets in a rainbow, the blue sky and the orange and red of sunsets and sunrises). Objects outside the atmosphere reflect back their colors, without white light being broken up by air. The moon is yellow, Mars is red and look at all the colors of Jupiter. \n\n\nWhite light is made up (already contains) the different colors of the visible light spectrum: Red Orange Yellow Green Blue Indigo Violet. (Roy Green bit Iris Vaughn is a mmemonic to remember the colors) \n\nWhat distinguished the different colors in the spectrum is their wavelength. When white light hits an object like grass or wood only the color you see the object as, is reflected, the other colors are absorbed.
336901
Any three colors (or frequencies) of light which produce white light when combined with the correct intensity!\n\n"White light can also be produced by combining only three distinct frequencies of light, provided that they are widely separated on the visible light spectrum. Any three colors (or frequencies) of light which produce white light when combined with the correct intensity are called primary colors of light. There are a variety of sets of primary colors; yet,the most common set of primary colors is red (R), green (G) and blue (B). When red, green and blue light are mixed or added together with the proper intensity, white (W) light is obtained. This is often represented by the equation below:\n\nR + G + B = W\n\nIn fact, the mixing together (or addition) of these three primary colors of light with varying degrees of intensity can produce a wide range of other colors. For this reason, television sets and computer monitors produce the range of colors on the monitor by the use of of red, green and blue phosphors."
560800
Light is refracted from a single point. Since the light which gets refracted into the same colors is all the same distance from the point source, a circle is formed.\n\n-Wied
72663
Its a cute question. :-)\nLet me explain it this way.\n\nShadows arent necessarily objects themselves. \nThey are just a patch of surface, which dont recieve direct light from the source (sun, lamp etc), but only recieve the scattered rays of light. \nAnd for this reason, these patches are dimly lit, making it look darker than the surrounding, which in our daily terms is 'black'. :-)
393843
b/c a constant amt. of electricity is going into it, and it will only get brighter if you add more electricity to it, or get a brighter bulb!
297785
Because our "air" is composed mostly of nitrogen.  The nitrogen filters out the "blue" wave length of white light.
941040
I believe the light bulb would light up the sphere, like a lamp shade, You'd see the light but not the light bulb. The metal particles that are in a one sided mirror allow some light to come through.
368951
Same phenomenon happens when you look through a convex lens or at your reflection in a spoon. Something to do with the movement of light. It bends and shows stuff the other way around. Sorry, it's not my expertise. But that's basically how it happens.
761588
It has to do with the way our eyes are built. The color receptors in our eyes are less sensitive than the black and white ones. This means that we need a stronger light source to distinguish color. I hope this is an answer to the question you intended to ask. You seem to have stopped without finishing it.