People love the rainbow of ROYGBIV colors: red, orange, yellow, green, blue, indigo and violet. Human eyes perceive visible light as this array of colors. You may notice that some colors you can ...

Scientists have used a new lens to focus all the colors of the rainbow into one point. This is the first time a single lens has been used to focus the entire spectrum of light, including white light.

For more than two centuries, astronomers have treated the Sun’s spectrum as a solved problem, a textbook example of how light ...

One of the dumber assertions that always turns up in arguments about the sciences versus "the humanities"-- the Two Cultures of C.P. Snow's famous lecture-- is that the clinical approach inherent to ...

WASHINGTON -- When Mother Nature decorated the universe, she chose a color slightly greener than a pale, pale turquoise. And like an ordinary human homeowner, she'll redecorate eventually, shifting to ...

Accurate color mixing of light from LEDs requires precise knowledge of the primary colors used for mixing. While some manufacturers provide bin data for color LEDs, many do not. What is almost always ...

How do you find the quality of the light a light bulb produces? Using the color rendering index, a measure of how well a light bulb illuminates a range of colors. Appliance Science looks at the ...