Explore topic-wise fullforms in Space Science

INFO: Full form for RCC is Range Control Center in Space Science category
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INFO: Full form for RCC is Rough Combustion Cutoff in Space Science category
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INFO: Full form for KFC is Kennedy Flight Center in Space Science category
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INFO: Full form for FDI is Failure Detector Indicator in Space Science category
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INFO: Full form for FDI is Fault Detection and Isolation in Space Science category
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INFO: Full form for JAD is Joint Assembly Demonstration in Space Science category
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INFO: Full form for ESA is Engineering Supply Area in Space Science category
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INFO: Full form for ESA is Engineering Support Assembly in Space Science category
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INFO: Full form for ESA is Explosive Safe Area in Space Science category
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INFO: Full form for MB is Management Baseline in Space Science category
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The bar is a metric unit of pressure, but not part of the International System of Units (SI). It is defined as exactly equal to 100,000 Pa (100 kPa), or slightly less than the current average atmospheric pressure on Earth at sea level (approximately 1.013 bar). By the barometric formula, 1 bar is roughly the atmospheric pressure on Earth at an altitude of 111 metres at 15 °C.

The bar and the millibar were introduced by the Norwegian meteorologist Vilhelm Bjerknes, who was a founder of the modern practice of weather forecasting.

The International Bureau of Weights and Measures (BIPM) lists the bar as one of the "non-SI units [that authors] should have the freedom to use", but has declined to include it among the "non-SI units accepted for use with the SI". The bar has been legally recognised in countries of the European Union since 2004. The US National Institute of Standards and Technology (NIST) deprecates its use except for "limited use in meteorology" and lists it as one of several units that "must not be introduced in fields where they are not presently used". The International Astronomical Union (IAU) also lists it under "Non-SI units and symbols whose continued use is deprecated".

Units derived from the bar include the megabar (symbol: Mbar), kilobar (symbol: kbar), decibar (symbol: dbar), centibar (symbol: cbar), and millibar (symbol: mbar).

INFO: Full form for MB is Main Bus in Space Science category
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