Welcome


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.

Monday 28 April 2014

Tuesday 15 April 2014

What Does Sound Look Like?

You can actually see sound waves as they travel through the air thanks to a clever photographic trick: Schlieren flow visualization

Friday 11 April 2014

How the first transistor worked

Bill uses a replica of the point contact transistor built by Walter Brattain and John Bardeen at Bell Labs. On December 23, 1947 they used this device to amplify the output of a microphone and thus started the microelectronics revolution that changed the world. He describes in detail why a transistor works by highlighting the uniqueness of semiconductors in being able to transfer charge by positive and negative carriers.

 

Saturday 5 April 2014

Relativity Isn't Relative

Several important quantities are not relative.