Gyroscope, 7.5cm brass wheel balanced with three pairs of adjustable pivots fitted on stand, 3 cm at its rim, carefully balanced and all three pairs of pivots are adjustable, Complete fitted on stand
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
Rotating Platform, for gyroscope and moment of inertia demonstrations, Includes substantial support plates, heavy duty ballbearing axle, and six slip patches for safe use, Platform is 37.5cm in diameter
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