How does it work? – Cinema projector
This animation demonstrates the design and operation of a traditional cinema projector.
film projector, cinema, movie, motion picture, film, film screening, projection box, film reel, optics, frame, film drive mechanism, digital, analogue, stereo soundtrack, media, technology
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Several analogous types of eyes have developed independently through convergent evolution.
The invention of the ballpoint pen made writing a lot easier.
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This animation demonstrates the structure and operation of different types of optical disc drives.
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A white, crystalline compound which breaks down when exposed to light.
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