3 minute read
Great Minds
from KidZine 40
by KidZine
John Baird
Inventor of the Television
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John Baird was born on August 13th 1888 in Helensburgh, Dunbarton, Scotland. He took a course in electrical engineering at the Glasgow and West of Scotland Technical College (now called Strathclyde University) and studied towards his Bachelor of Science Degree in electrical engineering from the University of Glasgow; although his studies were disrupted by the outbreak of World War 1.
During the 1920s John Baird, together with an American named Clarence W. Hansell, patented the idea of using arrays of transparent rods to transmit images for television.
Baird's 30 line images were the first demonstrations of television by reflected light rather than back-lit silhouettes. He based his technology initially on a scanning disk idea and then later, on developments in electronics.
He created the first televised pictures of objects in motion in 1924 and the first televised human face in 1925. A year later, in 1926, he televised the first moving object image at the Royal Institution in London.
His 1928 transatlantic transmission of the image of a human face was a broadcasting milestone.
Baird also demonstrated colour television, stereoscopic television and television by infra-red light, all before 1930.
He successfully lobbied for broadcast time with the British Broadcasting Company (BBC) who began broadcasting television on the Baird 30-line system in 1929.
In 1936, the BBC adopted television service using the electronic television technology of MarconiEMI (the world's first regular high resolution service - 405 lines per picture). It was that technology that eventually took over from Baird's innovative system.
John Baird died on June 14th 1946 in Bexhill-onSea, Sussex, England but the television pioneer will always be remembered for his invention of the mechanical television system.
دريب نوج
نويزفلتلا عترمخ
،نوترابمد ،روبسنله يف 1888 سطسغأ 13 يف دريب نوج دلو .ادنلتكسا وجسلاج يف ةيئابرهكلا ةسدنهلا يف ةرود ىلع لصح ةعماج نلآا ىمست يتلا) ادنلتكسا برغل ةينقتلا ةيلكلاو يف سويرولاكبلا ةداهش ىلع لوصحلل سردو (ديلاكثارتس ىلع .وكسلاغ ةعماج نم ةيئابرهكلا ةسدنهلا يف مولعلا برحلا علادنا ببسب هتسارد تلطعت دقف ،كلذ نم مغرلا .ىلولأا ةيملاعلا
