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Talking MOOCs

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Recently interest in MOOCs (Massive Open Online Courses) has moved from the learning technology community into the popular press. Some of the coverage has been almost apocalyptic in tone. http://cogdogblog.com/2012/07/17/mooc-hysertia/ This post, the first of…

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a dog against bluescreen

Chromakey

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Chromakeying is a technique where a particular colour in video footage is removed and replaced with another video or image. Examples include weather broadcasts where a plain background behind the presenter is replaced with a…

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