"A foundational look at wedges, explaining how these simple machines work and describing some common examples, such as shovels, that have been used throughout history"--Provided by publisher.
- ISBN10 0898125839
- ISBN13 9780898125832
- Publish Date 2 February 2011 (first published 1 January 2011)
- Publish Status Transferred
- Publish Country US
- Imprint Creative Paperbacks
- Format Paperback (US Trade)
- Pages 24
- Language English