stack exchange

How Does Light Travel Through Glass?

drorzel | December 15, 2010

I've mentioned before that I'm answering the occasional question over at the Physics Stack Exchange site, a crowd-sourced physics Q&A. When I'm particularly pleased with a question and answer, I'll be promoting them over here like, well, now. Yesterday, somebody posted this question: Consider a single photon (Î»=532 nm) traveling through a plate of perfect glass with a refractive index n=1.5. We know that it does not change its direction or other characteristics in any particular way and propagating 1 cm through such glass is equivalent to 1.5 cm of vacuum. Apparently, the photon…

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How Does Light Travel Through Glass?

Changing the racist mind after Trump

There is no way to sugar coat this: Trump is a Russian asset, according to me.

Can we please get rid of the R******s name?