Geek Fact for August 6th

In 1935, 
American physicist William Coolidge was granted a patent for the cathode ray tube.

The development of electronic television systems was based on the development of the cathode ray tube (CRT), more commonly known as the picture tube.

Learn more about CRTs at http://inventors.about.com/od/cstartinventions/a/CathodeRayTube.htm

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