Kugel ball

A kugel ball is a water feature or sculpture where a sphere sitting in a spherical pocket on a pedestal is supported by a thin film of water. Pressurized water flows between the sphere and pocket, creating a mechanical fluid bearing that is nearly frictionless. A kugel ball can weigh thousands of pounds, but the efficient bearing allows it to be spun by the force of a hand. Kugel balls are often fabricated from granite. Ring sculptures that rotate on an axis are also built.

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• Kugel ball sculpture at disnyland granite ball
• Kugel ball fountain science museum of virginia
• References

Kugel ball installations can be found all over the world. Many are at popular tourist destinations, such as science museums shopping centers, lobbies, and gardens.

The term kugel ball originates from the German word Kugel for ball or sphere.