Also, the pressure at the bottom will be lower than the pressure at the top as pressure decreases with increasing elevation.
The Stirling cycle describes a phenomenon where a confined volume of gas expands at high pressure and contracts at low pressure.
They had been protesting at a site in Hesketh Bank operated by energy firm Cuadrilla which was given a licence in 2008 to extract gas by pumping water, sand and chemicals into shale rock at pressure.
BBC: Hesketh Bank fracking rig protesters guilty of trespass
Even a relatively small amount of gas a can cause big problems because a gas bubble will expand massively as it moves from high pressure at the seafloor to lower pressure at the surface.
Researchers also found that balls inflated at higher pressure hit the head with greater acceleration, even when kicked at the same speed.
It then needs two hours to settle as it is pumped at high pressure.
Fracking is a technique involving pumping water and chemicals into shale rock at high pressure to extract gas.
BBC: Lancashire's shale gas estimated at ?136bn by Cuadrilla
Liquid-fuelled rocket engines work by mixing the fuel (in this case kerosene) with liquid oxygen at high pressure.
Fracking is a technique where water and chemicals are pumped into shale rock at high pressure to extract gas.
BBC: Lancashire election candidates asked to oppose fracking
Fracking is a controversial process that involves pumping water and chemicals into shale rock at high pressure to extract gas.
Fracking is a drilling process that frees gas from deep rock deposits by injecting wells with chemical-laced water at high pressure.
Fracking is the process of blasting water at high pressure into shale rock to release oil or gas held within it.
Fracking is a technique of shale gas extraction that involves pumping water and chemicals into shale rock at high pressure to extract gas.
Brain, who played 285 games for Gloucester and went on to become head coach at Worcester, knows all about pressure at rugby's highest level.
It extracts oil from the ground using a method called fracking - pumping down a mixture of sand, water and chemicals at high pressure.
Western parents are usually horrified at the pressure the tiger mums exert on their children to get better grades or become concert violinists, preferably before puberty.
ECONOMIST: Tiger mothers in Singapore: Losing her stripes? | The
About 25, 000 wells a year are being fracked, a process in which water, chemicals and sand are injected at high pressure underground to release trapped natural gas.
Two years ago, the 44-year-old campaigner set up a group called India Against Corruption aimed at putting pressure on the government to bring about tough anti-corruption laws.
Under the process of fracking, oil or gas is extracted from shale rock by pumping a mixture of sand, water and chemicals into the rock at high pressure.
"In wintertime, the cliff surface gets so cold that its temperature falls below the freezing point of CO2, which at low pressure goes directly to solid, " said Dr Musselwhite.
Instead, with other profitable segments of the company growing, Wall Street insiders speculated he might agitate for a break-up, or at least pressure the board to consider such a move.
The new approach described by Matthias Beller, from the University of Rostock, and colleagues uses a ruthenium-based catalyst, which can efficiently generate hydrogen from methanol at 65-95C and at ambient pressure.
Seventeen months into her tenure, this scion of a powerful French family has shown herself adept at fending off outside pressure, at the same time as remoulding a holding group into something more streamlined.
One, to try to reestablish from the outside or at least pressure this administration from the outside to develop a central organizing principle for American foreign policy that is based on US strength and values.
This year he completed what is believed to be the first ever fracture stimulation procedure in Turkey: injecting a mixture of water and sand at high pressure down the wells to break up rock and release gas.
With a new formula in hand they built a software and hardware combination that shoots ink directly onto the fabric and then seals it with 400 degrees of heat at a pressure of 100 pounds per square inch.
The bans stem from local residents' concerns about potential adverse impacts if the state lifts its 5-year-old moratorium on gas drilling using high-volume hydraulic fracturing, or fracking, which frees gas from deep shale deposits by injecting wells with chemical-laced water at high pressure.
Hydraulic fracturing pumps many thousands of gallons of mainly water and sand, with a few chemicals, at high pressure into tight gas-bearing shale deposits (hardened muds), creating cracks that allow gas to flow back up the well to the surface ( Shale Shock).
Either way, the CO2 must be put somewhere, for which strategies include pumping it into rocky formations (such as depleted oil and gas wells) at a pressure of 100 atmospheres, or even piping it in liquid form under pressure onto the sea-floor where it is cold enough and the pressure high enough that it is hoped the material will stay there, assisted by the formation of CO2-hydrate.
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