Home is where wifi connects automatically , Programming , Coding, Unisex Graphic T-Shirt Size:S Its working principle is based

Its working principle is based on the model's constant amplitude oscillation under the force of gravity (weight) and potential energy (tension force) of the rubber band

Size of the model after assembly: 2

To wind it up just use the hand crank in its front

this is a very dry and basic description of this beautiful mechanical model

The model represents the construction of a spaceship: rocket stages

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