In this video, I show you how to create your own rainbow using just a glass of water, a flashlight, and a piece of white ...

I test a series of light experiments to explore reflection, refraction, and optical illusions, demonstrating how light behaves in surprising and educational ways.

A viral video from Jamtland, Sweden, captures a breathtaking 22-degree Sun halo with vivid sun dogs and rainbow arcs.

The Chicago Manual of Style is an American English style guide published by the University of Chicago Press. The Manual’s guidelines for publishing, style and usage, and citations and indexes—known as ...