The perforated film, 35 millimetres wide, ran at a rate of 16 frames per second, and a lens projected and magnified the images.
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Short, simple sentences with “perforated”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
The perforated film, 35 millimetres wide, ran at a rate of 16 frames per second, and a lens projected and magnified the images.
The kinetoscope: Edison's machine consisted of a 35 millimetre wide celluloid film, perforated at the sides, which was passed in front of a light source by the impulse of small cogwheels.
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