Science / Weather / Standard Atmosphere: A standard atmosphere has been defined by the International Civil Aeronautical Organization (ICAO). It assumes a mean sea level temperature of 15?°C a standard sea level pressure of 1,013.25 millibars or 29.92 inches of mercury, and a temperature lapse rate of 0.65?°C per 100 meters up to 11 kilometers in the atmosphere.
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Atmosphere Noun Synonyms: air, heaven(s), sky, aerosphere
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Standard Noun Synonyms: criterion, measure, benchmark, model, pattern, archetype, touchstone, yardstick, gauge, guide, guideline, paradigm, paragon, exemplar, example, sample, type, ideal, beau id‚al, rule, canon, law, requirement, precept, principle
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Entertainment / Photography / Standard Lens: Lens with a focal length approximately equal to the diagonal of the film format with which it is used. MORE
Business / Finance / Standard Industrial Classification (SIC): In statistics, a measure of the possible error in an estimate. Plus or minus 2 standard errors usually provides a 95% confidence interval. MORE
Science / Chemistry / Standard Hydrogen Electrode: A platinum electrode that runs the half reaction 2 H+(aq, 1M) + 2 e- rightarrow H2(g, 1 atm), chosen as a reference for cell voltages. The electrode potential of the standard hydrogen electrode is def MORE