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John Logie Baird (b. August 14 1888, d. June 14 1946) of Helensburgh, Scotland. Educated at the University of Glasgow, he was the first to invent a working system of television capable of showing moving images with shades of grey. Baird experimented with Nipkov disk. After many accidents, he finally succeeded. He demonstrated his system to the Royal Institution and a reporter from The Times on January 26 1926 in the Soho district of London.
In 1927 he transmitted a signal over 438 miles of telephone line between London and Glasgow. He set up the Baird Television Development Company Ltd, which in 1928 made the first transatlantic television transmission from London to New York and also made the first programme for the BBC. That same year his tireless energy also demonstrated the first colour television and true stereoscopic television.
From 1929 onwards, the BBC made broadcasts using the Baird television system, alternating these with Marconi's broadcasts of electronic scanning system television signals during the 1930s, until they finally discontinued broadcasts of the Baird mechanical system in 1937.
Baird's mechanical television system was replaced by the electronic television system described by A.A. Campbell-Swinton and later developed by inventors such as Philo T. Farnsworth and Vladimir Zworykin.
Baird never stopped inventing. His 1928 invention called the Phonodisc was basically a 78rpm record that could play a 30 line video signal - a primitive video recording device.
He televised the first live transmission, of the Epsom Derby, in 1931, and the following year he was the first to demonstrate ultra-short wave transmission.
His other developments were in fibre-optics, radio direction finding, infrared night viewing and also demonstrated his big screen television system at London Coliseum, as well as Berlin, Paris and Stockholm.
There remains still the nagging doubt that his contribution to the development of radar for wartime defence projects has never been officially acknowledged.
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da:John Logie Baird
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