Have you ever wondered how seesaws go up and down or how screws stay secure in walls? Beginning concepts of mechanical engineering including levers, wedges, inclined planes, and more are learned through diagrams, photos, and informative and engaging text.
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- New Fiction
- New Nonfiction
- All Fiction
- All Nonfiction
- Thriller
- Mystery
- Romance
- Fantasy
- Inspirational
- See all audiobooks collections
