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Title: Tech

Essay Details:

Subject: Technology
Date: December 4, 2012
Grade: A
Length: 5 / 1240

Essay text:

In 1880, Bell patented a phone using optical transmission called the Photophone. Bell’s invention failed because it used air as the medium to transmit light, rather than the glass fibers that are used today. Copper wire was simply more reliable than Bell’s invention at the time, leading to the failure of his Photophone (Hecht, 1999). Expanding on Bell’s idea, English scientist John Logie Bard and United States scientist Clarence W. Hansell patented the idea of using hollow glass pipes to transmit television images in the 1920’s. However, the tubes patented were very poor quality and experienced signal loss very easily...

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