Introduces different types of forces, the laws that govern them, and Einstein's theory of relativity.
- ISBN10 0750027118
- ISBN13 9780750027113
- Publish Date 31 July 1999
- Publish Status Out of Print
- Out of Print 28 June 2001
- Publish Country GB
- Publisher Hachette Children's Group
- Imprint Hodder Wayland
- Format Hardcover
- Pages 45
- Language English