"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 1608180131
- ISBN13 9781608180134
- Publish Date 1 January 2011
- Publish Status Active
- Publish Country US
- Imprint Creative Education
- Format Hardcover (Library Binding)
- Pages 24
- Language English