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Set of 5 pendulum balls with tripod

Demonstrate that for every action there is an equal and opposite reaction. Lift and drop one ball to see one ball pop out from the other side. Lift two balls and two pop out. Leave this popular toy on your desk for a school year of enjoyment and learning. Size: 20*15*22.5cm

Classification:

Mechanics

Keywords: physiological model biological model

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Centrifugal Railway Model

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