- Subjects
- Published
-
New York :
Gareth Stevens Pub
c2011.
- Language
- English
- Main Author
- Physical Description
- 48 p. : ill. (chiefly col.), ports
- Bibliography
- Includes bibliographical references and index.
- ISBN
- 9781433941399
9781433941405
- Islamic science
- Making paper
- Wind power
- Advances in math
- Castles and bridges
- Chinese science
- The magnetic compass
- Clocks and watches
- Guns and gunpowder.