JEANNY MANUAL PROPELLER PLANE

JEANNY MANUAL PROPELLER PLANE

11.00JOD
Brand:
With this product you will receive 11 reward points.
Availability: In Stock

Product Description

turning the propeller by hand. you will find that the rubber band also rotates along with it, this is the kinetic energy you release, which is converted into the elastic potential energy of the rubber band. 

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