The best videos about physics topics found on the web.
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.
Sunday, 16 November 2014
How a Crookes radiometer works
A Crookes radiometer is driven by a thermal gas effect, and not "light pressure" as often thought. Ben Krasnow demonstrates the radiometer in a vacuum chamber and explain its optimal running pressure.