PBS
Pbs: Transistorized!
This site provides a tour of the discovery and development of the transistor form PBS, including video and lesson plans.
Other
Bell Laboratories: Colloids
This site is provided by Bell Laboratories, and is devoted to the mixture known as Colloids. The site is broken down into 4 areas: an intro, what it is, breakthrough, and application section. The site contains pictures and provides many...