Kepler's three laws of planetary motion are demonstrated. A trajectory is determined not only by the force field but also by the initial condition of the motion.
International Science Film Collection, Audio Visual Services, Pennsylvania State University, 201 Carnegie Building, 1127 Fox Hill Rd., University Park, PA 16802, Toll-free: 800-826-0132, URL: http://www.psu.edu
Running time 6 minutes.
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