- Euler's Disk amazes as it demonstrates the math and physics of spolling
- Spin the included disk on the concave mirror and watch as the disk spolls for remarkably long periods of time
- As it spolls, its appearance changes and it begins to generate a mysterious hum until the motion abruptly ends
- A fascinating and entertaining toy for any scientifically minded child or adult; Makes a great desk toy
Shipping and Returns
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