Physics Of Granite Sphere Fountain

Physics of the granite sphere fountain nasa ads 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.

Physics of granite sphere fountain.

Physics of the granite sphere fountain jacco h. It is often made from granite. The sphere does not float being denser than water. In this paper we explain the working principle behind this levitation.

In this paper we explain the working principle behind this levitation. American association of physics teachers. Snoeijer1and ko van der weele2. Physics of the granite sphere fountain jacco h.

We do produce a smaller version of our giant stone sphere fountains but there is a minimum order of 2 500 plus shipping. The kugel fountain shown here involves a massive granite sphere which oats and spins on a thin lm of owing water which is pumped out of a hole at the base of the fountain. A granite wheel fountain in which the levitated object is a cylinder instead of a sphere. The disk in this particular fountain has an estimated radius of r 0 50 m and approximate width 0 30 m.

Ring sculptures that rotate on an axis are also built. It is demonstrated how the viscosity and flow rate of the fluid determine i the remarkably small thickness of the film supporting the sphere and ii the surprisingly long time it takes for rotations to damp out. Accepted 20 june 2014. 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. Burgers centre for fluid dynamics university of twente p o. Kugel fountains can be found all over the world. Box 217 7500 ae enschede the netherlands ko van der weele department of mathematics university of patras 26500 patras greece received 22 may 2013.

Snoeijer physics of fluids group and j m.