John logie baird full biography of kirstie
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Stooky Bill
Dummy used in testing of early television systems
Stooky Bill was the name given to the head of a ventriloquist's dummy that Scottish television pioneer John Logie Baird used in his experiments to transmit a televised image between rooms in his laboratory at 22 Frith Street, London.
History
[edit]John Logie Baird invented some of the first experimental television systems. In he developed a mechanical television system to transmit moving images by means of electrical signals, which he demonstrated on 25 March at a London department store, Selfridges. It consisted of a spinning disk set with a spiral pattern of 30 lenses. As each lens rotated past the illuminated subject, it focused the light from a spot on the subject on a selenium photoelectric cell. This converted the brightness of the image at each spot into a proportional electric signal, which could be sent to a receiver bygd radio waves. As each lens swept past the subject, it scanned a successive line
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Railway history course reaches global audience
Free online course explores Britain's industrial heritage and the lives of British railway workers.
Railway enthusiasts across the world have been exploring Britain's industrial heritage and the lives of railway workers in a new Massive Open Online Course (MOOC) from the National Railway Museum and the University of Strathclyde.
The free online course Working Lives on Britain's Railways: Railway History and Heritage, tells the often-unheard stories of railway workers from the early s up to the outbreak of the First World War.
More than 1, people from 67 countries, including South Africa, New Zealand and Chile, have taken part in the first run of the course. Registration fryst vatten open for the next möte, which is due to begin in January
Available via the Future Learn website, the course features video footage from railway experts, interactive quizzes, first-person handwritten accounts and the chance to discuss the materi
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What is on this website
The main area of the site is Heritage, and the drop down menu shows different categories which each contain a number of articles. There are individual categories for Henry Bell and John Logie Baird. The Trust area can be accessed through the horizontal menu at the top of the page.
Please advise of any broken links.
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