SCIENTIFIC AND EDUCATIONAL,--MICROCINEMATOGRAPH FILMS AND
ROENTGENCINEMATOGRAPHY
Though the work of the cinematograph is only in its infancy, the range
of its possibilities seems almost boundless. When the target-practice
pictures mentioned above were taken, it was said that some of the
pictures showed a twelve-inch shell actually in flight. The writer
saw these pictures, and while he did not see this point illustrated,
possibly due to the breaking and imperfect repairing of the film, the
statement can be credited, as it is feasible to see this with the naked
eye if the observer is well in the line of flight. Another remarkable
instance which illustrates the capabilities and speed of the lens has
been cited in the case of a picture which shows a rifle-bullet on the
inside of a soap-bubble, from which it was learned that the bubble
does not break until the bullet leaves the opposite side from which it
entered.
[Illustration: Produced by Thomas A. Edison, Inc.