F Video 21 of 22 L
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Added: 15 years ago.
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Video Description

"Countdown" connects the invention of the movie projector to improvements in castle fortifications caused by the invention and use of the cannon. The use of the cannon caused changes in castle fortifications to eliminate a blind spot where cannon fire could not reach. This improvement in castle defense caused innovation in offensive cannon fire, which eventually required maps. This caused the need to see things at long distances (like a mountain top) so the effect was the invention of the incandescent light, or limelight. Burke turns to the next ingredient for a movie projector, film. Film is made with celluloid (made with guncotton) which was first invented as a substitute for ivory in billiard balls. Next was the invention of the zoopraxiscope which was first used for a bet to see if a horse's hooves touched the ground while galloping. The zoopraxiscope used frame by frame pictures and holes on the side to allow the machine to pull the film forward. Communication signals for railways using Morse's telegraph led to Edison discovering how to speak into a microphone creating bumps on a disc that could be played back -- the record player. This final ingredient gave movies sound. In summary, Burke connects the invention of the movie projector to four major innovations in history: the incandescent light; the discovery of celluloid; the projector that uses frame by frame pictures on celluloid; and finally, recorded sound.

Documentary Description

Connections was a ten-episode documentary television series created, written and presented by science historian James Burke. The series was produced and directed by Mick Jackson of the BBC Science & Features Department and first aired in 1978 (UK) and 1979 (USA). It took an interdisciplinary approach to the history of science and invention and demonstrated how various discoveries, scientific achievements, and historical world events built off one another in an interconnected way to bring about particular aspects of modern technology. The series was noted for Burke's crisp and enthusiastic presentation (and dry humour), historical reenactments, and intricate working models. The popular success of the series led to the production of two sequels, Connections² (1994) and Connections³ (1997), both for TLC. In 2004, KCSM-TV produced a program called Re-Connections, consisting of an interview of Burke and highlights of the original series, for the 25th anniversary of the first broadcast in the USA on PBS.
Source: Wikipedia

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