How to catapult a castle
Subtitle: machines that brought down the battlements
By: By James de Winter.
Series: Fact finders. extreme science
Publisher: Capstone Press
Published: 2009
Place of publication: Mankato, Minn
Language: eng
ISBN-13: 9781429631181; 9781429631389
Subjects: Siege warfare -- Juvenile literature
Genres: Juvenile literature.
Description: "Presents the science behind building and defending castles including the use of simple machines, such as pulleys and levers"--Provided by publisher.
Notes: Includes bibliographical references and index.