Smithsoniann Perpetual Motion Machine Physics Science Fun

Description: This Smithsonian "perpetual" motion machine is a very cool piece for a desk, shelf, or table. It requires 4 AA batteries not included. When the batteries are in just touch the circle lightly and the perpetual motion begins. It's relaxing and interesting to watch. Perfect for a student or adult, tested and works please see video.

Price: 14 USD

Location: Southington, Connecticut

End Time: 2024-12-31T00:02:58.000Z

Shipping Cost: 7 USD

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Item Specifics

All returns accepted: ReturnsNotAccepted

Brand: Smithsonian

Country/Region of Manufacture: China