To increase the pressure you would have to reduce the diameter of the pipe. Half the diameter would give you twice as much pressure. Therefore to get 25 percent more pressure you would reduce the diameter by 25 percent giving you 37.5. Be careful though, this only increases the water pressure not the water flow rate.
If the flow is subsonic the pressure will increase, if however it is supersonic the pressure will decrease.
It doesn't cause high blood pressure. However, it can increase your blood pressure.
Temperature is not directly tied to volume, its related to pressure. Increasing the temperature will increase the pressure--only if volume is held constant. That is were volume and temperature are related, through pressure. However, if you increase the volume it does not change the temperature.
Temperature is not directly tied to volume, its related to pressure. Increasing the temperature will increase the pressure--only if volume is held constant. That is were volume and temperature are related, through pressure. However, if you increase the volume it does not change the temperature.
No evidence is available regarding changes in blood pressure directly due to the neurogenic bladder. However, a rise in blood pressure can occur indirectly if the cause is Spinal cord injury that also affect the kidneys. Kidneys would result in increase water and salt absorption causing indirect increase in blood pressure.
The gas molecules gain energy from the heat and so they speed up, causing the pressure to increase.
The act of inhaling is to create low pressure in the lungs, causing the air in the atmosphere to rush in as it is moving from a higher pressure (outside in the atmosphere) to the lower pressure (created in the lungs). However the fact that air does move into the lungs means that there is no net change in pressure.
Generally speaking, it would increase. However, it depends on the reason for the hypertension. For instance, if there is an obstruction or constriction of the renal artery (stenosis, malignancy, etc...) the physiologic affect would to increase the body's BP. This is due to the fact that the obstruction is decreasing hydrostatic pressure to the glomerulus, and transiently decreasing GFR. The body compensates by increasing BP to increase GFR. Patients that present with a renal artery stenosis could in fact be hypertensive with a decreased GFR.
Temperature is really just the amount of kinetic energy in the molecules of a substance. If you add more energy by heating the substance then the molecules dash about faster and faster. This increases the pressure if the substance is constrained, like gas in a jar or in a bomb.
In general, increasing the diameter of a piston will only increase the volume of fluid the pump will move. Increasing the stroke, however, will increase pressure. The piston will rise higher in the cylinder to more fully compress the volume of fluid contained.
In places with lower oxygen levels (typically areas with high elevation for example), the blood pressure will indeed increase. However, as one acclimates to(gets used to) the environment, the number of red blood cells in your body will also increase, which will then eventually decrease the higher than average blood pressure.
No, pennies are manufactured to be a certain size and you cannot increase that by simple massage. You can stretch a penny by using great pressure, such as letting one be run over by a train, however.