The speed of light puts a speed limit on matter, lets us peer back into the history of our universe, and has deep implications for physics and space travel. (Image credit: Josh Hawley via Getty ...

Light's behavior seems counterintuitive. That is, until you figure out light is a wave.

Shini introduces the idea of Quantum Mechanics and how it helps us understand light.

Light is faster than anything else in the known universe, though its speed can change depending on what it's passing through.

If light travels 1 km through air, how much of it is lost to friction? This question was originally answered on Quora by Ron Davis.

Learn about physics, a science that introduces you to the underlying laws and mechanisms for how the universe works, why you should study physics.

Physics & Chemistry What Is Light, Anyway? By Jamie Condliffe Published February 20, 2013 | Comments (0) 𝕏 The Original Double Slit Experiment ...

New physics research from CU Boulder keeps the theory of light and matter fractious Light can’t seem to keep itself together—at least in two dimensions—according to new findings from the University of ...

This persnickety number determines the strength of magnetic fields. It figures in everything from motors and generators to ...