# Sound Waves In Air

Professor Richard H. Bolt discusses sound wave phenomena, how sound travels, and how it is reflected. The film demonstrates that sound is a wave phenomenon and thus can also move around barriers. Also the film shows how sound waves can be refracted through a lens. For more info on PSSC, its history, and films, visit http://www.afana.org/psscfilms.htm

- Kind: Educational
- Year: 1961
- Runtime: 34 min
- By: Educational Services Inc.; Physical Science Study Committee.
- Genres: Education, Science
- Archive: [Internet Archive](https://archive.org/details/SoundWavesInAir)
- 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/SoundWavesInAir?play=1)