The title says it all: this blog features physics videos found everywhere on the web: animations, demonstrations, lectures, documentaries.
Please go here if you want to suggest other nice physics videos, and here if I mistakingly infringed your copyrights. If you understand French, you'll find a huge selection of physics videos in French in my other blog Vidéos de Physique.

Saturday, 29 January 2011

Earthquake (P and S waves)

An earthquake generates a P wave (fast and longitudinal) and a S wave (slower and transversal).  Because of its greater velocity, the P wave arrives before the S wave.  In this video, the dog senses the P wave 5 seconds before we see the effects of the S wave.

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