How Levers Help Us
This instructional film shows the three parts of a lever and demonstrates how various levers help to move things more easily, or move them farther and faster.
| Release Date | January 1, 1970 | |
|---|---|---|
| Status | Released | |
| Original Title | How Levers Help Us | |
| Runtime | 11min | |
| Budget | — | |
| Revenue | — | |
| Language | — | |
| Original Language | English | |
| Production Countries | United States of America | |
| Production Companies | Coronet Films | |