Stone Ball Fountain
granite rolling balls
STONE BALL FOUNTAIN
HOW IT WORKS
1. Even though the ball weighs a 30 KG to 30000 KG, even a small child can change the course of it and send it into an accelerated
spin. There are no belts, pulleys or wheels used to make the ball spin. It is floating on water.
2. The Stone ball fountain made two key elements: the stone ball itself and the base it sits in. Cutting these two is a very complicated
process as any large differences between the contours of them will prevent the ball from turning properly or sitting in the socket. The two pieces are machined at the same time to ensure any differences between them are minute.When finished and the ball is placed in the socket, the space between the two will be less than the thickness of a business card.
What to do: See if you can spin half a ton of granite ball!
What happens: You can spin the granite ball because it is floating on water. The water pressure is only about 3 pounds per square inch
in the gap between the ball and the cup. There are enough square inches for this pressure to hold up to 1200 pounds of granite spheres!
3. The stone ball fountains is made from granite/marble/hard rocks, a type of igneous rock. The word ‘igneous’ means ‘made from fire or heat’. Granite forms when molten rock (known as magma) below the surface of the Earth cools very slowly. As it cools, the magma turns into solid rock. The granite contains coarse grains of crystals, such as quartz. It is its appearance that gives granite its names, as it comes from the Latin for ‘grainy’. Granite forms a large part of the continental crust and can be found in many mountainous regions around the world. Because it is so hard wearing and tough, granite is widely used in construction.
4. Water is pumped up from beneath the socket. This lubricates the sphere and puts pressure on it, forcing it to turn gently. Once the stone ball has begun to revolve, it will continue to do so until the water is shut off.
5. The pressure of the pump in this exhibit is very very low, at 3 pounds per square inch (psi). Other large spheres operate at higher pressures, between 14 and 21 psi. This is in comparison to, for example, tyre pressure,
which can be between 26 and 34 psi.
if you want to buy just email on [email protected]
HOW IT WORKS
1. Even though the ball weighs a 30 KG to 30000 KG, even a small child can change the course of it and send it into an accelerated
spin. There are no belts, pulleys or wheels used to make the ball spin. It is floating on water.
2. The Stone ball fountain made two key elements: the stone ball itself and the base it sits in. Cutting these two is a very complicated
process as any large differences between the contours of them will prevent the ball from turning properly or sitting in the socket. The two pieces are machined at the same time to ensure any differences between them are minute.When finished and the ball is placed in the socket, the space between the two will be less than the thickness of a business card.
What to do: See if you can spin half a ton of granite ball!
What happens: You can spin the granite ball because it is floating on water. The water pressure is only about 3 pounds per square inch
in the gap between the ball and the cup. There are enough square inches for this pressure to hold up to 1200 pounds of granite spheres!
3. The stone ball fountains is made from granite/marble/hard rocks, a type of igneous rock. The word ‘igneous’ means ‘made from fire or heat’. Granite forms when molten rock (known as magma) below the surface of the Earth cools very slowly. As it cools, the magma turns into solid rock. The granite contains coarse grains of crystals, such as quartz. It is its appearance that gives granite its names, as it comes from the Latin for ‘grainy’. Granite forms a large part of the continental crust and can be found in many mountainous regions around the world. Because it is so hard wearing and tough, granite is widely used in construction.
4. Water is pumped up from beneath the socket. This lubricates the sphere and puts pressure on it, forcing it to turn gently. Once the stone ball has begun to revolve, it will continue to do so until the water is shut off.
5. The pressure of the pump in this exhibit is very very low, at 3 pounds per square inch (psi). Other large spheres operate at higher pressures, between 14 and 21 psi. This is in comparison to, for example, tyre pressure,
which can be between 26 and 34 psi.
if you want to buy just email on [email protected]