pressure gravity principle

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• Gravity (alcoholic beverage) — A floating hydrometer in use to test the specific gravity of beer Gravity, in the context of fermenting alcoholic beverages, refers to the specific gravity, or relative density compared to water, of the wort or must at various stages in the… …   Wikipedia

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• Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …   Wikipedia

• Principle of minimum energy — The principle of minimum energy is essentially a restatement of the second law of thermodynamics. It states that for a closed system, with constant external parameters and entropy, the internal energy will decrease and approach a minimum value at …   Wikipedia

• Pressure sensor — Digital air pressure sensor Compact digital barometric pressure sensor A pressure sensor measure …   Wikipedia

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• Electron degeneracy pressure — is a consequence of the Pauli exclusion principle, which states that two fermions cannot occupy the same quantum state at the same time. The force provided by this pressure sets a limit on how much matter can be squeezed together without it… …   Wikipedia

• Ocean Pressure Electric Conversion — (OPEC) is an electricity generation and seawater desalination technology based on water pressure differences created by depth. It operates on the principle that the difference between water pressure at depth, or hydrostatic pressure, and normal… …   Wikipedia

• Ocean pressure electric conversion — is an electricity generation and seawater desalination technology based on water pressure differences created by depth. It operates on the principle that the difference between water pressure at depth, or hydrostatic pressure, and normal… …   Wikipedia

• Anti-gravity — Antigrav redirects here. For the EyeToy video game, see EyeToy: AntiGrav. Anti gravity is the idea of creating a place or object that is free from the force of gravity. It does not refer to the lack of weight under gravity experienced in free… …   Wikipedia