**Photons, Schmotons**

by John Baez, Michael Weiss

**Publisher**: University of California 2002**Number of pages**: 47

**Description**:

Did you ever wonder 'What the heck is a photon, anyway?' Well, this question quickly gets you into pretty deep waters. Not only do you need to understand Maxwell's equations and quantum mechanics, you need to understand how they fit together into a marvelous theory called 'quantum electrodynamics'. These webpages won't teach you quantum electrodynamics. But they'll give you a little nudge in the right direction.

Download or read it online for free here:

**Download link**

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