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\nTelevision: From Mechanical to Electronic Systems\n

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\nIn London during 1926 John Logi Baird demonstrated a mechanical television system that used rotating discs to scan an image. The picture was made up of 30 vertical lines with 5 images per second. In 1936 at London s Alexandra Palace a...\nIn London during 1926 John Logi Baird demonstrated a mechanical television system that used rotating discs to scan an image. The picture was made up of 30 vertical lines with 5 images per second. In 1936 at London s Alexandra Palace a series of trials of both the mechanical system and EMI s electronic system commenced. The team from EMI led by Alan Blumlein had developed what was called a High Definition system. The EMI technology sent 25 images per second each made up of 405 lines. It completely outclassed the Baird system and is the direct ancestor of the television we have today.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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2:34
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Grade
Pre-K - Higher Ed
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Subjects
Visual & Performing Arts
3 more...
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Media Type
Instructional Videos
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Source:
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\nKnowledge - In Short\n\n
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Date
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2009
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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television, london, lines
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Additional Tags

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in short, episode 243, early television, mechanical television, mechanical system, bed system, system, radio, images, scan, image, picture, made, baird
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Classroom Considerations

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Best For: Explaining a topic
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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Television: From Mechanical to Electronic Systems\" href=\"/subscription/new\">\"Television:\n\n
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