Pulley, Single Sheave, Pulleys wheels are made of plastic and mounted securely in an aluminum housing with a hook on both the top and bottom for suspension, Size: 50mm
Wards Essentials Trebuchet Kit, Material: High quality precision-cut Birch verner pure bond plywood, Designed to be safe and robust, Dry firings and heavy projectiles are no problem, Holes are pre drilled, Medieval weapons, engineering, and physics, Beam arm: 21in
Differential Model, permits the instructor and student to manually turn the handle and apply a load to the transparent wheels to demonstrate the differential mechanism, permits power from the engine to be transmitted to a pair of driving wheels.
Stem Explorations- Vehicles Building Set, Age: 8+, set includes 130+ parts for a single child or team of 2 children to build 7 vehicle models with different power sources, including push-power, rubber band power, wind power or a spring motor, for grade 3-5
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