Does light behave more like a particle, or like a wave? Today we know the surprising answer. Here's why it took so long to ...

Light is a type of electromagnetic radiation that can be detected by the eye. It travels as a transverse wave. Unlike a sound waves, light waves do not need a medium to pass through, they can ...

Light Waves and their Uses. By A. A. Michelson. The Decennial Publications of the University of Chicago. Pp. 166. (Chicago: University Press, 1903.) Price 2 dollars net.

The wave-particle duality is one of the most astonishing and counterintuitive concepts in modern physics. This idea is based ...

Within that spectrum are blue light waves, which are said to help us stay alert and upbeat. Light impacts your circadian rhythm. In the morning, light signals to your body that it's time to wake ...

An imaging technology 'listens' to the sound of light to study different biological phenomena Call it a science fair for adults. On November 20, Duke inventions and companies started by faculty and ...