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 ...

Color is to the eye what birdsong is to the ear: a primal communion between ourselves and nature. The elemental power of color radiates from van Gogh’s shimmering wheat fields; in celestial ...

Imagine, right now, as you read these words, you're immersed in an unseen ocean of energy. Waves are zipping through your ...

How can we measure visible light? The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) Different types of electromagnetic radiation such as radio ...

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.

While violet hits your eye with a specific wavelength, purple only exists in your perception — a clever construct built from ...