How It Works
This section features a series of articles on parts of physics that students (and sometimes teachers) find confusing. Hopefully they will shine a little light on the matter (and if we're lucky, maybe we'll even get some photoelectric effect going on).
Particle Tracks
The small and fleeting traces left by subatomic particles moving through a cloud or bubble chamber can tell us a lot about things we can never see. Learn to identify the tracks and why they look like they do.
Photoelectric Effect
The photoelectric effect provided evidence for the particle nature of light at a time when all evidence pointed to light being a wave. Learn what the expected and measured results were, and why.