Practical cinematography and its applications (1913)

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CHAPTER IX SLOWING DOWN RAPID MOVEMENTS DURING the past few years much effort has been spent upon adapting the cinematograph so that it will record exceedingly rapid move- ments, such as a bullet in flight. Some popular films of this character have been placed on the market, and, in order to attract the public, have been colloquially described as " quicker-than- thought " or " quicker-than-the-eye " movements. Strictly speaking both the latter designations are erroneous, especially in regard to the eye, inasmuch as if a bullet fired from a rifle were brilliant white the eye would be able to follow its flight with ease, notwithstanding the fact that it may issue from the muzzle with a travelling speed of 2,000 feet or more per second. So far as the moving-picture camera is con- cerned it is obvious that the ordinary machine could not be operated with sufficient speed to film a bullet in flight, or even to catch the flap of the wings of a small insect, such as a house-fly or bee. It would be impossible to jerk the