# Universal Gravitation

Explains the law of universal gravitation by imagining a solar system of one star and one planet. Professors Patterson Hume and Donald Ivey as inhabitants of planet X describe the process by which they derived the law in their solar system. Demonstrates the kinematics and dynamics of planetary motion using a large turntable as a model of a solar system. Displays satellite orbits as figured by a digital computer. For more info on PSSC, its history, and films, visit http://www.afana.org/psscfilms.htm

- Kind: Educational
- Year: 1960
- Runtime: 31 min
- By: Physical Science Study Committee.; Educational Services, Inc.; Modern Talking Picture Service, inc.
- Genres: Education, Science
- Archive: [Internet Archive](https://archive.org/details/UniversalGravitation)
- Licence or status: none stated by the archive
- Who can watch: Kids profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/UniversalGravitation?play=1)