Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all...

Students learn how the eye responds to visible light, and how that function ultimately allows us to see.

Illustrated explanation of the analytical work that art historians and curators perform using visible light and imaging technologies.

Ultraviolet (UV) light has shorter wavelengths than visible light. Though these waves are invisible to the human eye, some insects can see them. The specific wavelength values are given. Uses and applications of these waves are explained.

This page defines electromagnetic radiation. Included are links to more information.