GENERAL
EBSCO - See Mrs. Phillips or Mrs. Pugh for login information.
Difference between trebuchet and catapult
NOVA
Trebuchet.com
TREBUCHET
CATAPULT
How Stuff Works
How to Build a Catapult
Wicked How-To's
How to build a trebuchet
Trebuchet FAQ
The Algorithmic Beauty of the Trebuchet
Trebuchet Challenge
