How a standard Television works and what understanding of Physics was needed to develop it.

... 100 years ago it was merely a scientists dream. 70 years ago people such as Zworkyn and John Logie Baird proved the basics possible. 50 years ago owned only by the wealthy, they began to change the world. Today almost every household in Europe has at least one, they are used for entertainment, information and education. This report aims to describe how a standard Television works and what understanding of Physics was needed to develop it. (1) Background Unlike modern Television sets the earliest were almost completely mechanical. The dream that was Television was a machine that could reproduce captured images using light, unlike photographs and film Television would store pictures electronically. The original mechanical Televisions could achieve this but were not alike Televisions based on the Cathode Ray tube (see next page). It is not surprising that the inventor of Television is greatly debated, there are claims of it being a

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