The Secret Life of the Television
John Logie Baird, the Scottish inventor, developed an electromechanical TV system in the 1920s and gave frequent public demonstrations. The publicity encouraged EMI to develop a practical all-electronic system, similar to today's. In 1936 the BBC transmitted both systems, but EMI's was judged superior.
heating system washing
SERIES 2: car internal combustion engine quartz watch telephone radio set video recorder
SERIES 3: fax machine lift word processor electric light photocopier the office
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