Learn how the PENDULUM works:

Pendulum is a stylized educational model, an interactive study guide to the mechanism, only for learning its essentials and principles of working. The pendulum is one of the basic and most reliable time measuring mechanisms. 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. The rubber band powers the mechanism of the model and compensates for the pendulum's oscillations' kinetic energy loss. The device is animated by means of a gear unit with a windup wheel.

Dimensions
Model size: 4.5 x 3.3 x 6.6 in 
Package size: 8.1 x 7.4 x 2.5 in

Weight
1.00 lbs 

Number of Parts
92

Assembly Time
2 hours

Level
Easy

Manufacturer
UGears

Shipping
We ship most in-stock merchandise within 24 hours of receiving your order. Standard ground delivery usually arrives in 5-7 business days.

Easy 30-Day Returns
If, for any reason, you are not 100% satisfied with one of our products, you may return it for a refund within 30 days of the purchase date. Please note, some items have additional return restrictions. For complete information on our returns policy and procedure, visit our Easy 30-Day Return Policy Page for full details.