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  2. Density of air - Wikipedia

    en.wikipedia.org/wiki/Density_of_air

    Air density is a property used in many branches of science, engineering, and industry, including aeronautics; [2] [3] [4] gravimetric analysis; [5] the air-conditioning industry; [6] atmospheric research and meteorology; [7] [8] [9] agricultural engineering (modeling and tracking of Soil-Vegetation-Atmosphere-Transfer (SVAT) models); [10] [11 ...

  3. Thiourea - Wikipedia

    en.wikipedia.org/wiki/Thiourea

    Thiourea is a planar molecule. The C=S bond distance is 1.71 Å. The C-N distances average 1.33 Å. [4] The weakening of the C-S bond by C-N pi-bonding is indicated by the short C=S bond in thiobenzophenone, which is 1.63 Å.

  4. Atmospheric pressure - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_pressure

    Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa ), which is equivalent to 1,013.25 millibars , [ 1 ] 760 mm Hg , 29.9212 inches Hg , or 14.696 psi . [ 2 ]

  5. Air mass - Wikipedia

    en.wikipedia.org/wiki/Air_mass

    The qualities of arctic air are developed over ice and snow-covered ground. Arctic air is deeply cold, colder than polar air masses. Arctic air can be shallow in the summer, and rapidly modify as it moves equatorward. [8] Polar air masses develop over higher latitudes over the land or ocean, are very stable, and generally shallower than arctic air.

  6. The Surprising Food That Can Help Reduce Bloating, According ...

    www.aol.com/surprising-food-help-reduce-bloating...

    These can either generate gas or cause you to swallow more air, causing bloating. The Bottom Line If your belly feels like a balloon of air that won’t deflate, don’t despair.

  7. Volumetric flow rate - Wikipedia

    en.wikipedia.org/wiki/Volumetric_flow_rate

    Volumetric flow rate is defined by the limit [3] = ˙ = =, that is, the flow of volume of fluid V through a surface per unit time t.. Since this is only the time derivative of volume, a scalar quantity, the volumetric flow rate is also a scalar quantity.

  8. Loss on ignition - Wikipedia

    en.wikipedia.org/wiki/Loss_on_ignition

    This may be done in air or in some other reactive or inert atmosphere. The simple test typically consists of placing a few grams of the material in a tared, pre-ignited crucible and determining its mass, placing it in a temperature-controlled furnace for a set time, cooling it in a controlled (e.g., water-free, CO2-free) atmosphere, and re ...

  9. Mass flow rate - Wikipedia

    en.wikipedia.org/wiki/Mass_flow_rate

    Mass flow rate is defined by the limit [3] [4] ˙ = =, i.e., the flow of mass through a surface per time .. The overdot on ˙ is Newton's notation for a time derivative.Since mass is a scalar quantity, the mass flow rate (the time derivative of mass) is also a scalar quantity.