Pulleys are simple machines that have many uses, from lifting an injured boater into a rescue helicopter to drawing a bucket of water from a well! This book explains the science behind this helpful machine.
- ISBN10 1615337512
- ISBN13 9781615337514
- Publish Date 30 July 2013 (first published 1 January 2013)
- Publish Status Active
- Publish Country US
- Imprint Windmill Books
- Format Hardcover (Library Binding)
- Pages 32
- Language English