"KIDDER MFG. CO. LTD"

This easy-to-build hydraulic arm demonstrates the power of fluid dynamics.

The Four-in One-Hydraulic Kit can carry things like a glass of milk, toys, and other fun items.

Build a simple walking robot to explore mechanical motion and energy conversion.

Build a working excavator to explore hydraulic mechanics in a fun, hands-on way.

Assemble a robot that climbs rope using pulley-based motion.

Build a functional vacuum cleaner to explore air pressure and mechanical design.

Construct a motorized elevator to explore simple machines and vertical transport systems.

Assemble a wooden house frame to explore architectural design and structural principles.