Studio : Sunnytech®

Publisher : Sunnytech®

Binding : Toy

Product Description
This classic desktop toy provides you many benefits and entertainments, is suitable for various locations such as house or office, and is an intriguing device that not only demonstrates pendulum motion, but also helps to show the laws of Conservation of Momentum and Energy. Whether you are studying physics knowledge, working on complex analysis, or looking for a delicate gift, this toy is definitely what you really want.?

Features:?
Size: check the gallery picture
Material:? metal.

How to play:
This cute Windmill model ONLY works in directly sun power. Place the model in directly sunlight, and give the propeller a gently push, it will active and start to charming you. Please be attention, it can't run inside room or across glass windows, no work in cloudy or rainy day too, no work under flashlight or cell phone flashlight. No power storage function, and no work in night. The running last-time of every launch will be different, even that it may stop automatically according to sun power decrease or sun position angle change. It's not product damage or defective, it's related to sun.


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