Screws / by Sally M. Walker and Roseann Feldmann ; photographs by Andy King.
We've all seen screws, but how do they work' Why is it easier to screw something into something than to simply push it in' With basic hands-on experiments and clear descriptions, this simple machine is explained.
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| Online Access: | Electronic book from EBSCO |
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| Format: | Electronic eBook |
| Language: | English |
| Published: | Minneapolis : Lerner Publications, ©2002. |
| Series: | Walker, Sally M. Early bird physics books.
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