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  2. Electromagnetic absorption by water - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_absorption...

    Water vapor concentration for this gas mixture is 0.4%. Water vapor is a greenhouse gas in the Earth's atmosphere, responsible for 70% of the known absorption of incoming sunlight, particularly in the infrared region, and about 60% of the atmospheric absorption of thermal radiation by the Earth known as the greenhouse effect. [25]

  3. Water potential - Wikipedia

    en.wikipedia.org/wiki/Water_potential

    Water potential is the potential energy of water per unit volume relative to pure water in reference conditions. Water potential quantifies the tendency of water to move from one area to another due to osmosis , gravity , mechanical pressure and matrix effects such as capillary action (which is caused by surface tension ).

  4. Standard electrode potential (data page) - Wikipedia

    en.wikipedia.org/wiki/Standard_electrode...

    The data below tabulates standard electrode potentials (E°), in volts relative to the standard hydrogen electrode (SHE), at: . Temperature 298.15 K (25.00 °C; 77.00 °F); ...

  5. Fourth Allied Tactical Air Force - Wikipedia

    en.wikipedia.org/wiki/Fourth_Allied_Tactical_Air...

    Fourth Allied Tactical Air Force (4 ATAF) was a NATO military formation under Allied Air Forces Central Europe tasked with providing air support to NATO's Central Army Group (CENTAG) in the southern portion of West Germany. 4 ATAF commanded all flying units based within its sector and all reinforcements flying into its sector, as well as ground-based radar systems and stations, air defense ...

  6. Fourth Air Force - Wikipedia

    en.wikipedia.org/wiki/Fourth_Air_Force

    The Fourth Air Force (4 AF) is a numbered air force of the Air Force Reserve Command (AFRC). It is headquartered at March Air Reserve Base , California. 4 AF directs the activities and supervises the training of more than 30,000 Air Force Reservists.

  7. Hydrogen isotope biogeochemistry - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_isotope...

    When water evaporates from the ocean to the air, both equilibrium and kinetic isotope effects occur to determine the hydrogen and oxygen isotopic composition of the resulting water vapor. At the water-air interface, a stagnant boundary layer is saturated with water vapor (100% relative humidity), and the isotopic composition of water vapor in ...

  8. List of active United States Air Force aircraft - Wikipedia

    en.wikipedia.org/wiki/List_of_active_United...

    Of these, 4 are deployed and the remaining 75 are on order. [3] UH-1N Iroquois: United States utility 63 63 UH-1N total force as of September 2023 (USAF Almanac). [1] 64 UH-1N operational (WAF 2025). [2] V-22 Osprey: United States CSAR CV-22B: 52 52 CV-22B total force as of September 2023 (USAF Almanac). [1] 51 CV-22B operational, 2 on order ...

  9. Atmospheric water generator - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_water_generator

    State-of-the-art AWG for home use. An atmospheric water generator (AWG), is a device that extracts water from humid ambient air, producing potable water. Water vapor in the air can be extracted either by condensation - cooling the air below its dew point, exposing the air to desiccants, using membranes that only pass water vapor, collecting fog, [1] or pressurizing the air.