"A foundational look at wheels and axles, explaining how these simple machines work and describing some common examples, such as doorknobs, that have been used throughout history"--Provided by publisher.
- ISBN10 0898125847
- ISBN13 9780898125849
- Publish Date 2 February 2011
- Publish Status Out of Stock
- Publish Country US
- Imprint Creative Paperbacks
- Format Paperback (US Trade)
- Pages 24
- Language English