Mr. Keelbuster youre getting on me nerves
Exhibit A, your Honor
...and
Exhibit B
and i quote
Quote:
Direction of fluid pressure
Now, what is different about pressure caused by a liquid, or gas is that not only is there pressure pushing down at a given point, but there is also the same pressure pushing up and to the sides.
All directions
The pressure is the same in all directions in a fluid at a given point. This is true because of the characteristic of liquids and gases to take the shape of their container.
What this also means that any hollow container submersed in a liquid has pressure on every square inch of its surface, top and bottom.
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Exhibit C
Keeping in mind that SAND is a solid:
Quote:
Another trait of liquids is that they are difficult to compress. When you compress something, you take a certain amount and force it into a smaller space. Solids are very difficult to compress and gases are very easy. Liquids are in the middle but tend to be difficult. When you compress something, you force the atoms closer together. When pressure go up, substances are compressed. Liquids already have their atoms close together, so they are hard to compress. Many shock absorbers in cars compress liquids in tubes.
A special force keeps liquids together. Solids are stuck together and you have to force them apart. Gases bounce everywhere and they try to spread themselves out. Liquids actually want to stick together. There will always be the occasional evaporation where extra energy gets a molecule excited and the molecule leaves the system. Overall, liquids have cohesive (sticky) forces at work that hold the molecules together.
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....and because its treated as a solid, sand has different physics
05-03-06, 05:04 AM
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