# Simple Waves

John Shive explains that pulse propagation on ropes and slinkies shows elementary characteristics of waves, such as different speeds in different media. He uses a torsion bar wave machine to repeat these experiments to demonstrate reflection and other phenomena. For more info on PSSC, its history, and films, visit http://www.afana.org/psscfilms.htm

- Kind: Educational
- Year: 1959
- Runtime: 26 min
- By: Physical Science Study Committee. Physics.; Educational Services, Inc.; Modern Talking Picture Service, inc.
- Genres: Education, Science
- Archive: [Internet Archive](https://archive.org/details/SimpleWaves)
- 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/SimpleWaves?play=1)