The Way Things Work Pulleys
The inhabitants of Mammoth Island are trying to find the best method to lift their mammoths when a young Islander uses a simple machine called a pulley to get the job done. A pulley is a wheel that carries a rope, chain or cable on its rim and can be used alone or with other pulleys to lift heavy lo...
| Corporate Author: | Millimages S.A., Schlessinger Media., Pearson Broadband. |
|---|---|
| Other Authors: | Macaulay, David. |
| Format: | Videos DVD |
| Language: | English |
| Published: |
Wynnewood, PA :
Schlessinger Media,
[2003], c2002.
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| Subjects: |