how can i increase the pressure exerted on water?
92719
Let's consider a deep-sea diver. The pressure pushing on the diver is less at shallow depths than at greater depths. This is because at shallow depths, there is a shorter column on water above the diver than there would be at greater depths. But the pressure the diver feels is not just felt from above! The force is transmitted through the fluid and pushes the diver from all directions, even from below. \n\nPressure within the Earth can be thought of the same way that we think of water pressure on a diver. Under the surface of the ocean, you are under pressure from all directions because of the weight of the column of water above you. Within the Earth, an object is under pressure from all directions due to the weight of the column of rock above the object. This pressure is often called confining pressure, because it is the push from all directions that tends to confine material to the smallest possible volume (space).
308884
Water pressure is the pressure that water exerts on any object that is immersed in it. Picture holding an object over your head the object is exerting a force on you. In the same way water exerts a force on you if you in a pool, but a force on all parts of your body. Atmospheric pressure is similar to water pressure but it is force exerted by the air around us.
367774
Water is denser than air (or sunlight).
1043213
That may depend on your application.  The pressure drop will depend on whether you are filtering gas or liquid and whether you are interested in the pressure drop of new filter samples or filters in use as they become clogged.  Flow rate will also increase pressure drop.\n\n\nFor example, if the filter is installed at as joint in a round horizontal pipe, and the flow is liquid (water?), and the pressure is relatively low, you can attach vertical plastic tubes with pipe fittings upstream and downstream of the filter.  If the water rises say one foot higher in the upstream tube than the downstream tube, the pressure drop across the filter is 12 inches w.g. (water gage).  If the pressure is too high for plastic tubes (where about 15 psi would require 34 foot high tubes), you can attach pressure gages to the pipe fittings and compare their readings or install a differential pressure gage across the fittings to directly read the pressure drop.\n\nIf the flow is a gas (air?), flowing through a duct, you can install a clear plastic "U" tube partially filled with water (and food coloring?) across fittings upstream and downstream of the filter to measure the pressure drop in inches w.g. or use a sensitive differential pressure gage.  Hope that helps a little.
136063
high presser water blaster
383444
No.  There's nowhere near enough pressure.  You need to go down about 50 meters before the bends can hit you upon surfacing.  Depending on your physicall fitness, you may even be able to go deeper.
722824
water is denser than wood
225537
At sea level, the pressure the air exerts downward is at 1 atmosphere (normally).  If you decend 32 feet below water, the water pressure acting on you is 1 atmosphere as well, even greater as you go deeper.\n\nWhen you try to suck air down underwater, the water is trying to push it back up.  At some point, you just wont have enough "sucking power" to over come the weight of the water.
508799
That depends on the depth. For each 27.68" of liquid water, there is an increase of 1 psi. This would be affected slightly by anything disolved in the water, such as salt in the oceans. Water vapor in the atmosphere is also sometimes included in the term hydrosphere. Pressure at the Earth's surface is figured as 14.7 psi in common usage, which accounts for the difference in psi(a) and psi(g) data.
530887
Fill a long tube with solids and try to blow air through it.\nPut a flabby piece of rubber at the end.\nYou will get all your answers then.
150637
To avoid squeeze, equalized early and often.  Even before you go under water.  In the begining, you may have to equalize every 2 feet.  Remember that the change in pressure from 0 to 30' is 100%.  That's a lot, so the first 30' you will equalize the most.\n\nIf you feel pressure, that's usually too late for a lot of people.  If you are at that point, you will need to ascend 2-5 ft, and equalize.
132379
also increase ur fluid intake
1165265
its all to do with weight displacement and the volume of water
264933
try substracting atmospherical pressure, and then you have the in-gage pressure.
6350
If it has an air bubble then tie a string around the upper end and whirl it around over your head.  The force should make the bubble rise.
772547
Increase your elevation or find a court with less gravitational force.   It's  a physics thing.
810879
The problem is not the weight of the water, it's the drag of the fluid. Unless you can find some magic way to eliminate the drag in a fluid like water which is so much more than that of a gas, you will be stuck with lower speeds. Even if you had some "magic" bubble around the sub, you would still need to displace the liquid to move the bubble.