THAMES & KOSMOS CATAPULTS ENGINEERING

Investigate physics using technology from medieval times!
Build six sleek, functional models of catapults, trebuchets,
and launchers. Use these classic siege weapons to conduct
simple experiments that demonstrate important mechanical
engineering topics like force, energy, motion, and trajectory.
The included lightweight foam balls and soft darts are safe
and effective projectiles to fling at your cardboard “castle”
and other targets! The 32-page, full-color manual has
illustrated step-by-step instructions for building the models
and conducting the experiments.
• New and improved version of a classic best-seller
• Combines engaging, hands-on construction
projects with real, authentic learning
• Durable, modular building system allows for
hours of open-ended play and exploration
• Specially designed and tested for safety
• Models include: crossbow, reverse draw crossbow,
catapult, onager, trebuchet, and ballista