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Equations of Motion of a Rocket

Description: "In considering the motion of the rocket, at each instant of time only the state of those material particles which at that instant are within the control surface passing through the exterior surface of the body of the rocket and the exit section of the nozzle shall be included. In order to obtain the equations of motion of the rocket, the following procedure is used. An arbitrary but fixed instant of time is considered" (p. 1).
Date: April 1950
Creator: Gantmacher, F. R. & Levin, L. M.
Partner: UNT Libraries Government Documents Department

[Tercio de Varas]

Description: Photograph of a bullring during the Tercio de varas (the lancing third) segment of a bull fight. The focus is on the bull and a picador. Taken in Venezuela during the time that the Princeton Film Center crew filmed the series, Venezuela on the March.
Date: 1948~
Partner: UNT Media Library

[Drying Laundry and a Field in Venezuela]

Description: Photograph of the Princeton Film Center crew's custom vehicles camped in a field. Taken during the time that the crew filmed the series, Venezuela on the March, in Venezuela. The message "File copy / do not remove" has been stamped on the top right corner of the photograph.
Date: 1948~
Partner: UNT Media Library