# The Effects of the Ionosphere on Radio-wave Propagation (1950)

The Effects of the Ionosphere on Radio-wave Propagation (1950) Includes a brief history of the electron microscope. Demonstrates the use and the importance of the electron microscope and the techniques in using it.

- Kind: Educational
- Year: 1950
- Runtime: 29 min
- By: National Audiovisual Center
- Genres: Education, Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/effectsoftheionosphereinradiowavepropagation)
- 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/effectsoftheionosphereinradiowavepropagation?play=1)