Watch Inventions That Changed the World Season 1 Episode 5 The Television

Inventions That Changed the World

The Television

Season 1 Episode 5

Aired date: Feb 12, 2004

Plot: Television would never have developed without the cathode ray tube (CRT). It was invented by a German, Karl Ferdinand Braun, in 1897. A CRT is a glass vacuum tube with a narrow neck that flares into a flat "screen" at one end. The inside surface of the screen is covered with a phosphorescent layer. Electrons are fired at high voltage along the tube, illuminating when they hit the phosphorescent layer. Refined versions of this basic tube were at the heart of millions of TVs, radars and computer monitors manu... MORE

amazon Web Links
< PrevInventions That Changed the World The Television

S1 E4
The Telephone
Feb 6, 2004

Inventions That Changed The World Videos

Loading Clips...

Comments About Inventions That Changed the World

Inventions That Changed the World

Inventions That Changed the World

Release Date: 2004
Duration: 60 min
In Inventions That Changed the World, Jeremy Clarkson demonstrates how five key technological advances, the gun, the computer,...more