Rainbows: Alexander’s band
The band between the primary and the secondary rainbow is darker. The area underneath the primary rainbow is lighter. We explain Alexander’s band.
light
Just a minute: how do polarized sunglasses work?
We briefly discuss how polarized sunglasses work, quantum fields, pilots, and 3D cinema.
Why, exactly, do glass and liquids refract light?
We provide a semi-in-depth look into why glass and liquids bend light. We discuss quantum fields, Maxwell’s equations, and vectors. No calculations.