When the high water pressure is released after the fracturing of the shale, some 10 percent to 30 percent of the water comes back to the surface.
For what causes the cold snaps is when an area of high pressure sits over the continent and, well, just sits there.
For example, a car could gently increase the gas-pedal spring pressure when the speed is too high -- the navigation system knows how tight that upcoming curve is, remember -- or apply a light twist to the steering wheel if the car is drifting off course.
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When water velocity is high, the pressure within the liquid drops to below the vapour pressure of water, allowing tiny air bubbles to expand.
Leeds' struggles on the pitch have led to frustration among an expectant fanbase who are never shy in voicing their frustration, increasing the burden on the players at a time of the season when pressure is already high.
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Prices did hit a fresh two-week high in the early going, but then backed off the daily high when the raw commodity sector and stock market came under selling pressure just after the U.S. markets opened.
The workers were constructing a mining operation underground when they were hit by a high-pressure release of grout, said Bronson Mack of the Southern Nevada Water Authority, a cooperative public agency formed in 1991 to manage the water resources in a region that includes Las Vegas.
The first attempt to launch the rocket was halted Saturday when a flight computer detected high pressure in an engine combustion chamber.
"You can't hold a high line when there's no pressure on the ball, " Thompson insisted.
When nuclear fusion uses up a star's fuel, in the central high-pressure stellar core where fusion occurs, the star will collapse fairly violently.
By designing custom hydraulic servos and managing the robot's gait so that it only uses high pressure when it truly needs to (like when it's beginning to take a step), the company hopes to bring that number to 20 percent.
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The results revealed that while I perform optimally when everything is going fine, in high-pressure situations, I begin to make mistakes -- lots of them.
"When I go talk to high school students and ask them if they experience pressure, the majority who raised their hands were the girls, " he said.
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In the weather, we can see positive feedback when a series of hot, sunny days create a static high pressure system which keeps storms from moving in to cool things off.
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It took until the 23rd minute to get the Halliwell Jones scoreboard ticking when Warrington full-back Chris Riley dropped a towering high ball, leading to a sustained period of pressure for the Bulls that ended in Lynch crashing over for a video-referral try.
Some people with herpes take antiviral drugs for years, while others just use them periodically -- for example, when they're starting a new relationship or anticipating a high-pressure situation. (Stress can up the risk of a herpes outbreak.) "It really is a very personal decision for patients, " Johnston says.
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