Paul Callaghan gives an introduction to NMR and MRI. Paul uses a mechanical wheel to illustrate the key concepts of precession, relaxation, and resonance. First in a 10 episode series produced by Magritek Ltd.
Thanks to Stan Sykora (owner of Stan's Physics Links) for this great suggestion.
View other videos of this series.
The title says it all: this blog features physics videos found everywhere on the web: animations, demonstrations, lectures, documentaries.