lifting pressure

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• Lifting bag — A lifting bag is an item of diving equipment consisting of a robust and air tight bag with strops, which is used to lift heavy objects underwater by means of the bag s buoyancy. The heavy object can either be moved horizontally underwater by the… …   Wikipedia

• Lifting gas — A lifting gas is required for aerostats to create buoyancy. Its density is lower than that of air (about 1.2 kg/m3, 1.2 g/l). Ammonia Ammonia is sometimes used to fill weather balloons. Due to its relatively high boiling point (compared to helium …   Wikipedia

• Star lifting — is any of several hypothetical processes by which a highly advanced civilization (at least Kardashev II) could remove a substantial portion of a star s matter in a controlled manner for other uses. The term appears to have been coined by David… …   Wikipedia

• Low-pressure area — This depiction of the Hadley cell shows the process which sustains low pressure areas. Diverging winds aloft allow for lower pressure and convergence at the Earth s surface, which leads to upward motion. A low pressure area, or low , is a region… …   Wikipedia

• Intraocular pressure — (IOP) is the fluid pressure inside the eye. Physiology and measurementIntraocular pressure is mainly determined by the coupling of the production of aqueous humor from the eye s ciliary body and its drainage through the trabecular meshwork and… …   Wikipedia

• root pressure — Bot. osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves. [1870 75] * * * ▪ botany       in plants (plant), force that helps to drive fluids upward into the water conducting vessels (… …   Universalium

• Diver rescue — Beaching a casualty while providing artificial respiration Diver rescue, following an accident, is the process of avoiding or limiting further exposure to diving hazards and bringing a SCUBA diver to safety.[1] A safe place is often a place where …   Wikipedia

• prolapsed intervertebral disc — (PID) a slipped disc : protrusion of the pulpy inner material of an intervertebral disc through the fibrous outer coat, causing pressure on adjoining nerve roots, ligaments, etc. The condition often results from sudden twisting or bending of the… …   Medical dictionary

• prolapsed intervertebral disc — PID a ‘slipped disc’: protrusion of the pulpy inner material of an intervertebral disc through a tear in the fibrous outer coat, causing pressure on adjoining nerve roots, ligaments, etc. The condition often results from sudden twisting or… …   The new mediacal dictionary

• Hydraulic hooklift hoist — PRESSURE FLOW Hydraulic Oil Pressure = Capacity All hooklift hoists are preset, at the factory, to achieve intended lifting capacity. Turning up the system s pressure will increase lifting capacity, but adjusting or tampering with hoist s… …   Wikipedia

• Airship — For other uses, see Airship (disambiguation). Dirigible redirects here. For the 1931 film, see Dirigible (film). Not to be confused with Balloon (aircraft) or Blimp. Airship …   Wikipedia