Great Idea Finder
The Great Idea Finder: Television
This site provides an introduction to the ideas behind the invention of television. The site includes a good selection of links to more information and a bibliography.
National Academy of Engineering
Greatest Engineering Achievements of the 20th Century: Radio and Television
Learners explore radio and television in the 20th century. Some topics investigated are cathode-ray tubes, radio broadcasting, and high-definition televisions. The resource consists of historical information, a timeline, and a personal...
University of Colorado
University of Colorado: Physics 2000: The Big Picture
Ever wondered how your TV produces those images on the screen? You can use the explanations and the interactive applets on these pages to find out how a cathode ray tube allows you to watch your favorite show!
University of Illinois
University of Illinois Urbana Champaign: Chemistry Learning Center: How Does a Cathode Ray Tube Work?
Learn how a cathode ray tube works by scrolling over each part for a brief description. Watch a video in Quicktime or a video for Windows of a cathode ray tube.
National High Magnetic Field Laboratory
Magnet Academy: Electromagnetic Deflection in a Cathode Ray Tube, Ii
Many people interact with cathode ray tubes for part, if not most, of the day without having a clue how they work. Here's the inside scoop. (Java tutorial)
National High Magnetic Field Laboratory
Magnet Academy: Electromagnetic Deflection in a Cathode Ray Tube, I
Discovering how cathode rays behave in a magnetic field was a big step forward for scientists trying to understand the mysterious phenomenon. (Java tutorial)
National High Magnetic Field Laboratory
Magnet Academy: Siegmund Loewe
Siegmund Loewe was a German engineer and businessman that developed vacuum tube forerunners of the modern integrated circuit. He pioneered both radio and television broadcasting, and the company he established with his brother, David...
CK-12 Foundation
Ck 12: Chemistry: Cathode Ray Tube
[Free Registration/Login may be required to access all resource tools.] Covers the development of the first cathode ray tube.
National Inventors Hall of Fame
National Inventors Hall of Fame: Vladimir Kosma Zworykin
This site honors Vladimir Kosma Zworykin for his invention of the cathode-ray tube. Content includes a brief biography of the inventor, as well as a look at how his invention has impacted our society.
Physics Aviary
Physics Aviary: Thomson's Cathode Ray Tube Lab
This lab is designed to have students look at the deflection of a cathode ray beam using magnetic fields and electric fields.
National High Magnetic Field Laboratory
Magnet Academy: Audion 1906
Two years after Englishman John Ambrose Fleming invented a two-electrode vacuum tube, American inventor Lee De Forest one-upped him by developing a tube with three electrodes.
Tech Target
What Is: Cathode Ray Tube
This resource provides a good description of the cathode ray tube, with a very clear diagram and links to more in-depth information.