A gas is one of the four main phases of matter (after solid and liquid, and followed by plasma), that subsequently appear as a solid material is subjected to increasingly higher temperatures. Thus, as energy in the form of heat is added, a solid (e.g. ice) will first melt to become a liquid (e.g. water), which will then boil or evaporate to become a gas (e.g. water vapor). In some circumstances, a solid (e.g. "dry ice") can directly turn into a gas: this is called sublimation. If the gas is further heated, its atoms or molecules can become (wholly or partiall ...

Including:

• Gas - Etymology

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Read more here: » Acid gas: Encyclopedia - Acid gas

Ga-ga is played within an octagonal enclosure when available, or in any other space that is completely enclosed by surrounding walls. The objective of the game is to eliminate your opponents by hitting a ball with either an open hand or closed fist into the region at or below his or her knees. That player is then out and must leave the playing area. A player can also be eliminated by having his or her ball caught in the air. Touching the ball twice consecutively without the ball touching another player or the wall is grounds fo ...

See also:

Ga-ga, Ga-ga - Game Play/Rules, Ga-ga - Variations

Read more here: » Ga-ga: Encyclopedia II - Ga-ga - Game Play/Rules

Town gas is a generic term referring to manufactured gas produced for sale to consumers and municipalities. Depending on the processes used for its creation the gas was a mixture of caloric gases: hydrogen, carbon monoxide, methane, and volatile hydrocarbons with small amounts of noncaloric gases carbon dioxide and nitrogen as impurities. Prior to the development of natural gas supplies and transmission in the United States during 1940s and 1950s, virtually all fuel and lighting gas was manufactured, and the byproduct coal tars ...

Including:

• Town gas - Manufacturing process
• Town gas - Early history of gas production by carbonization
• Town gas - Early history of gas production by gasification
• Town gas - The uses of gas and the later development of the gas industry
• Town gas - Historical References
• Town gas - Development of Pacific coast oil gas process
• Town gas - Layout of a typical gas plant
• Town gas - Issues in gas processing
• Town gas - WWI-interwar era developments
• Town gas - Post WWII: the decline of manufactured gas
• Town gas - Post WWII positive developments
• Town gas - Environmental effects

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A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compression of a gas naturally increases its temperature. Compressors are closely related to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are compressible, the compressor also reduces the volume of a gas, whereas the main result of a pump raising the pressure of a liquid is to allow the liquid to be transported elsewhere. Gas compressor - Compressor designs< ...

Including:

• Gas compressor - Compressor designs
• Gas compressor - Applications
• Gas compressor - Temperature
• Gas compressor - Staged compression
• Gas compressor - Prime movers

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Wood gas, also known as producer gas, syngas, water gas, air gas or blue gas, is the product of thermal gasification of biomass or other carbon containing materials such as coal in a gasifier. It is the result of a high temperature reaction (>700C), where carbon reacts with steam or a limited amount of air or oxygen producing carbon monoxide (CO), molecular hydrogen (H2), and carbon dioxide (CO2) In several gasifiers the actual gasification process is preceded by pyrolysis, w ...

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Natural gas (commonly referred to as gas in many countries, but note that gas is also an American and Canadian shortening of gasoline) is a gaseous fossil fuel consisting primarily of methane. It is found in oil fields and natural gas fields, as well as—in smaller quantities—in coal beds. When methane-rich gasses are produced by the anaerobic decay of non-fossil organic material, these are referred to as biogas. Sources of biogas include swamps (swamp gas), marshes (marsh gas), landfills (landfill gas), sewage sludge and manure (by way of anaerobic d ...

Including:

• Natural gas - Chemical composition and energy content
• Natural gas - Chemical composition
• Natural gas - Energy content and statistics
• Natural gas - Storage and transport
• Natural gas - Natural gas crisis
• Natural gas - Uses
• Natural gas - Power generation
• Natural gas - Natural gas vehicles
• Natural gas - Residential domestic use
• Natural gas - Fertilizer
• Natural gas - Other
• Natural gas - Sources
• Natural gas - Possible future sources
• Natural gas - Safety

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Air is the most common and only natural breathing gas. Other artificial gases, either pure gases or mixtures of gases, are used in enclosed breathing environments such as SCUBA equipment, recompression chambers, submarines, space suits and anaesthetic machines. A safe breathing gas has three essential features: it must contain sufficient oxygen to support the life, consciousness and work rate of the breather. it must not contain harmful gases. Carbon monoxide and carbon dioxide are common poisons in ...

Including:

• Breathing gas - Common diving breathing gases
• Breathing gas - Individual component gases
• Breathing gas - Oxygen
• Breathing gas - Nitrogen
• Breathing gas - Helium
• Breathing gas - Neon
• Breathing gas - Hydrogen
• Breathing gas - Unwelcome components of breathing gases
• Breathing gas - Argon
• Breathing gas - Carbon dioxide
• Breathing gas - Carbon monoxide
• Breathing gas - Hydrocarbons
• Breathing gas - Moisture content
• Breathing gas - Gas detection and measurement

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CS gas (commonly called "tear gas"), or ortho-chlorobenzylidene malononitrile, is a usually non-lethal riot control agent. Tear gas is a chemical compound (often generated by a burning process) which, in humans, causes immediate tearing of the eyes, mild respiratory convulsion, an increase in blood pressure and pulse, as well as the irritation of mucous membranes. Tear gas is available in a number of different chemical formulations with effects ranging from mild tearing of the eyes to immediate vomiting and prostration. ...

Including:

• CS gas - Usage
• CS gas - Risks to health

Read more here: » CS gas: Encyclopedia - CS gas

Compressed Natural Gas (CNG) is a substitute for gasoline (petrol) or diesel fuel. It is considered to be an environmentally "clean" alternative to those fuels. It is made by compressing purified natural gas, and is typically stored and distributed in hard containers. In response to high fuel prices and environmental concerns, compressed natural gas is starting to be used in light-duty passenger vehicles and pickup trucks, ...

Including:

• Compressed natural gas - Technology

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Arterial blood gas measurement is a blood test that is performed to determine the concentration of oxygen, carbon dioxide and bicarbonate, as well as the pH, in the blood. Its main use is in pulmonology, as many lung diseases feature poor gas exchange, but it is also used in nephrology (kidney diseases) and electrolyte disturbances. As its name implies, the sample is taken from an artery, whi ...

Including:

• Arterial blood gas - Obtaining and processing the sample
• Arterial blood gas - Interpretation
• Arterial blood gas - Reference ranges

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The thermodynamic properties of an ideal gas can be described by two equations: The equation of state of a classical ideal gas is given by the ideal gas law. The internal energy of an ideal gas is given by: where is a constant (e.g. equal to 3/2 for a monatomic gas) and: (with SI units appended) U is internal energy (joule) P is the pressure (pascal) V is the volume (cubic meter) n is the amount of gas (mole) ...

See also:

Ideal gas, Ideal gas - Classical ideal gas, Ideal gas - Heat capacities of an ideal gas, Ideal gas - The entropy of an ideal gas, Ideal gas - Thermodynamic potentials of an ideal gas, Ideal gas - Ideal quantum gases

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There are four principle types of gas operation: short-stroke, long-stroke, gas trap, and direct impingement. A short-stroke gas system is defined as one which utilizes high pressure gas from the middle portion of the barrel that impinges on the piston head for a short period of time before excess gas is either cut-off (M-14) or vented (AK-47) or the piston head reaches a stop (M1 Carbine). The distance the piston travels under pressure is generally less than its diameter. The piston may or may not be attached to the bolt carrier. Th ...

See also:

Gas-Operated, Gas-Operated - Gas Systems, Gas-Operated - Notes on Operation

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The thermodynamic properties of an ideal gas can be described by two equations: The equation of state of a classical ideal gas is given by the ideal gas law. The internal energy of an ideal gas is given by: where is a constant (e.g. equal to 3/2 for a monatomic gas) and: (with SI units appended) U is internal energy (joule) P is the pressure (pascal) V is the volume (cubic meter) n is the amount of gas (mole) ...

See also:

Ideal gas, Ideal gas - Classical ideal gas, Ideal gas - Heat capacity, Ideal gas - Entropy, Ideal gas - Thermodynamic potentials, Ideal gas - Speed of sound, Ideal gas - Ideal quantum gases

Read more here: » Ideal gas: Encyclopedia II - Ideal gas - Classical ideal gas

Gas turbines are used on ships, locomotives, helicopters, and in tanks. A number of experiments have been conducted with gas turbine powered automobiles. In 1950, designer F. R. Bell and Chief Engineer Maurice Wilks from British car manufacturers Rover unveiled the first car powered with a gas turbine engine. The two-seater JET1 had the engine positioned behind the seats, air intake grilles on either side of the car and exhaust outlets on the top of the tail. During tests, the car reached top speeds of 140 km/h, at a turbine speed of ...

See also:

Gas turbine, Gas turbine - Theory of operation, Gas turbine - Jet engines, Gas turbine - Gas turbines for electrical power production, Gas turbine - Micro turbines, Gas turbine - Auxiliary power units, Gas turbine - Gas turbines in vehicles, Gas turbine - Naval use, Gas turbine - Amateur gas turbines, Gas turbine - Advances in technology

Read more here: » Gas turbine: Encyclopedia II - Gas turbine - Gas turbines in vehicles

Gas turbines are used on ships, locomotives, helicopters, and in tanks. A number of experiments have been conducted with gas turbine powered automobiles. In 1950, designer F. R. Bell and Chief Engineer Maurice Wilks from British car manufacturers Rover unveiled the first car powered with a gas turbine engine. The two-seater JET1 had the engine positioned behind the seats, air intake grilles on either side of the car and exhaust outlets on the top of the tail. During tests, the car reached top speeds of 140 km/h, at a turbine speed of ...

See also:

Gas turbine, Gas turbine - Theory of operation, Gas turbine - Jet engines, Gas turbine - Gas turbines for electrical power production, Gas turbine - Microturbines, Gas turbine - Auxiliary power units, Gas turbine - Gas turbines in vehicles, Gas turbine - Naval use, Gas turbine - Amateur gas turbines, Gas turbine - Advances in technology

Read more here: » Gas turbine: Encyclopedia II - Gas turbine - Gas turbines in vehicles

The advent of incandescent gas lighting in factories, homes and in the streets, replacing oil lamps and candles with steady clear light, almost matching daylight in its colour, turned night into day for many - making night shift work possible in industries where light was all important - in spinning, weaving and making up garments etc. There followed gas heaters, gas cookers, refrigerators, washing machines, hand irons, pokers for fire lighting, gas heated baths, remotely controlled clusters of gas lights, gas engines of various types and, i ...

See also:

Town gas, Town gas - Manufacturing process, Town gas - Early history of gas production by carbonization, Town gas - Early history of gas production by gasification, Town gas - The uses of gas and the later development of the gas industry, Town gas - Historical References, Town gas - Development of Pacific coast oil gas process, Town gas - Layout of a typical gas plant, Town gas - Issues in gas processing, Town gas - WWI-interwar era developments, Town gas - Post WWII: the decline of manufactured gas, Town gas - Post WWII positive developments, Town gas - Environmental effects

Read more here: » Town gas: Encyclopedia II - Town gas - The uses of gas and the later development of the gas industry

Ga language - Consonants. Ga has 31 consonant phonemes. [ŋw] is an allophone of /w/ which occurs before nasals and is represented with its own digraph in writing. Note: The phonetic values are currently approximate. Ga language - Vowels. Ga has 7 oral vowels and 5 nasal vowels. All of the vowels have 3 different vowel lengths: short, long or extra long (used in the simple future and the simple past negative forms). < ...

See also:

Ga language, Ga language - Classification, Ga language - Geographic distribution, Ga language - Phonology, Ga language - Consonants, Ga language - Vowels, Ga language - Tones, Ga language - Phonotactics, Ga language - Writing system

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Gas is located at 37°55'26" North, 95°20'46" West (37.923851, -95.346168)GR1. According to the United States Census Bureau, the city has a total area of 2.0 km² (0.8 mi²). 2.0 km² (0.8 mi²) of it is land and none of it is covered by water. ...

See also:

Gas Kansas, Gas Kansas - Geography, Gas Kansas - Demographics

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Many politicians and prominent figures in North America have spoken publicly about a possible natural gas crisis. This includes former Secretary of Energy Spencer Abraham, Chairman of the Federal Reserve Alan Greenspan, Ontario Minister of Energy Dwight Duncan. The natural gas crisis is typically described by the increasing price of natural gas in the U.S. over the last few years due to the decline in indigenous supply and the increase in demand for electricity generation. Indigenous supply has not truly fallen -- but it has leveled o ...

See also:

Natural gas, Natural gas - Chemical composition and energy content, Natural gas - Chemical composition, Natural gas - Energy content and statistics, Natural gas - Storage and transport, Natural gas - Natural gas crisis, Natural gas - Uses, Natural gas - Power generation, Natural gas - Natural gas vehicles, Natural gas - Residential domestic use, Natural gas - Fertilizer, Natural gas - Other, Natural gas - Sources, Natural gas - Possible future sources, Natural gas - Safety

Read more here: » Natural gas: Encyclopedia II - Natural gas - Natural gas crisis