| Discovery Of The Electron |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| Electronic Charge And Mass |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| Electronic Charge To Mass Ratio - Laboratory |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| Radioactivity |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| Radioactivity Measurements - Laboratory |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| The Elements And Their Isotopes |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| Wave Lengths Of Spectrum Lines - Laboratory |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |
| X - Rays |
1957 |
Encyclopedia Britannica Films |
|
16mm |
|
sound |