Pascal principle in scuba diving

Answer 1

Fluid pressure is the pressure on an object submerged in a fluid, such as water. The pressure can be provided from a number of sources: # the shear weight of the fluid, such as in Scuba diving, when the diver goes deeper into the water, the water pressure increases; or in the earth's atmosphere, as a plane goes higher, the air pressure decreases; # a pump, such as when water "pumped" into a water tower; or # a compressor, such as in a small water supply system in a rural well for a house connected to an air compressor. Fluid pressure occurs in one of two situations: (1) an open condition, such as the ocean, or a swimming pool, or (2) a closed condition, such as a water line or a gas line. Open conditions are considered to be "static" or not moving (even in the ocean where there are waves and currents) because the fluid is essentially "at rest." The pressure in open conditions conform with principles of fluid statics. Closed bodies of fluid are either "static," when the fluid is not moving, or "dynamic," when the fluid is moving, like through a pipe. The pressure in closed conditions conform with the principles of fluid dynamics. The concepts of fluid pressure are predominately attributed to the discoveries of Blaise Pascal and Daniel Bernoulli. Fluid pressure is the pressure on an object submerged in a fluid, such as water. The pressure can be provided from a number of sources: # the shear weight of the fluid, such as in scuba diving, when the diver goes deeper into the water, the water pressure increases; or in the earth's atmosphere, as a plane goes higher, the air pressure decreases; # a pump, such as when water "pumped" into a water tower; or # a compressor, such as in a small water supply system in a rural well for a house connected to an air compressor. Fluid pressure occurs in one of two situations: (1) an open condition, such as the ocean, or a swimming pool, or (2) a closed condition, such as a water line or a gas line. Open conditions are considered to be "static" or not moving (even in the ocean where there are waves and currents) because the fluid is essentially "at rest." The pressure in open conditions conform with principles of fluid statics. Closed bodies of fluid are either "static," when the fluid is not moving, or "dynamic," when the fluid is moving, like through a pipe. The pressure in closed conditions conform with the principles of fluid dynamics. The concepts of fluid pressure are predominately attributed to the discoveries of Blaise Pascal and Daniel Bernoulli.