Burgers centre for fluid dynamics university of twente p o.
Physics of the granite sphere fountain.
Ko van der.
The sphere turns in any direction by hand or rotates horizontally if left to float by itself.
Accepted 20 june 2014.
Custom etching engraving on the sphere and base are available as well.
Snoeijer physics of fluids group and j m.
We do produce a smaller version of our giant stone sphere fountains but there is a minimum order of 2 500 plus shipping.
Pressurized water flows between the sphere and socket creating a mechanical hydrostatic bearing that is nearly frictionless.
In this paper we explain the working principle behind this levitation.
Imagine thousands of pounds floating on a thin layer of water.
Physics of the granite sphere fountain jacco h.
Physics of the granite sphere fountain.
In this paper we explain the working principle behind this levitation.
A kugel fountain also called a floating sphere fountain or by the pleonasmic name kugel ball is a water feature or sculpture where a sphere sits in a fitted hollow in a pedestal and is supported by aquaplaning on a thin film of water.
Even though it might look like a physical impossibility the physics behind a rotating granite sphere fountain is perfectly logical.
American journal of physics american journal of physics volume 82 1029 1039.
The rotating sphere no matter how heavy it is is actually supported by aqua planing on a thin film of water.
A striking example of levitation is encountered in the kugel fountain where a granite sphere sometimes weighing over a ton is kept aloft by a thin film of flowing water.
A striking example of levitation is encountered in the kugel fountain where a granite sphere sometimes weighing over a ton is kept aloft by a thin film of flowing water.
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What makes a granite sphere fountain work.
Box 217 7500 ae enschede the netherlands ko van der weele department of mathematics university of patras 26500 patras greece received 22 may 2013.
Many colors of granite are offered.