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History of Motion Pictures December 14, 1829 saw the birth of a process to make light record its images through a lens on a treated metal plate. February 5, 1861 marked the emergence of the term "cinema." Coleman Sellers, mechanical engineer of Philadelphia, Pennsylvania, patented his Kinematoscopc and gave to a great modern industry its basic name. The Kinematoscope did not present photographed motion, for the plate of the day was chemically too slow for consecutive photographs. But Mr. Sellers took sep- arate poses of his young sons in consecutive steps of action. These pictures were mounted on a device sim- ilar to a paddle wheel. Observed when revolved at a proper rate of speed, an impression of motion re- sulted. In 1863 the Phasmatrope of Henry Heyl, of Colum- bus, Ohio, and of Philadelphia, presented such an effect by means of a magic lantern. Thin glass positive pic- tures of Heyl's waltzing with a partner were mounted radially on a wheel. Thev were exposed intermittently to the light ray of the lantern. Of these Ramsave writes: "This machine had a shutter and a ratchet and a pawl intermittent mechanism which produced all of the mechanical effects necessary to the proper projection of pictures, even by today's standards." * The years moved on until 1872. Governor Leland Stanford, of California, horse breeder and statesman, contended with two doubting friends, James R. Keene and Frederick McCrellish, that at various gaits a horse at full speed took all of his four feet off the ground at 1 Ramsaye, Terry. A Million and One Nights, Vol. I: p. 19. Simon & Schuster. New York. 1926.