Monthly Archives: May 2017

Q: If light is a wave, then what’s doing the waving?

Physicist: In short: nothing.  Light acts like a wave, but unlike sound waves, light isn’t a material that’s moving back-and-forth. Waves are a coordinated movement of atoms.  A wave itself isn’t made of anything, it’s just a propagating motion through … Continue reading

Posted in -- By the Physicist, Experiments, Physics | 31 Comments