A summary of electric circuits.
The title says it all: this blog features physics videos found everywhere on the web: animations, demonstrations, lectures, documentaries.
Tuesday, 29 April 2014
Monday, 28 April 2014
Tuesday, 15 April 2014
Saturday, 12 April 2014
Friday, 11 April 2014
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.