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Foam fractionation
Foam fractionation is a separation process that concentrates dissolved surface-active solutes, such as surfactants and proteins, from dilute aqueous solutions by adsorbing them onto gas bubbles in rising foam.
Foam glass
Foam glass, also called cellular glass, is a rigid, lightweight insulation material made by foaming glass into millions of sealed gas cells, used since the 1930s.
Foam injection molding
Foam injection molding is a plastics process that injects polymer melt with a blowing agent, producing parts with a solid skin and a lightweight foamed core.
FOB (shipping)
FOB, or Free on Board, is an Incoterms rule under which risk of goods passes to the buyer once they are on board the vessel at the named port of shipment.
Fobos-Grunt
Fobos-Grunt (Фобос-Грунт, "Phobos Soil"), also spelled Phobos-Grunt, was a Russian sample return mission to Phobos, launched in November 2011 and lost when its main engine never fired; it reentered Earth's atmosphere in January 2012.
FOCAL (programming language)
FOCAL, or Formulating On-Line Calculations in Algebraic Language, is an interactive programming language created by Richard Merrill at DEC in 1968 for the PDP-8 and adapted from RAND's JOSS.
Focke-Achgelis
Focke-Achgelis was a German aircraft manufacturer founded in 1937 by Henrich Focke and Gerd Achgelis, the world's first helicopter manufacturer, known for the Fa 223 Drache, the first helicopter to reach production.
Focke-Achgelis Fa 330
The Focke-Achgelis Fa 330 Bachstelze was a German motorless rotor kite towed aloft behind surfaced U-boats to extend their view, with about 200 built from 1942.
Focke-Wulf Fw 190
The Focke-Wulf Fw 190, nicknamed Würger (Butcher Bird), was a German single-seat fighter of World War II, designed by Kurt Tank, with about 19,500 built.
Focke-Wulf Fw 200 Condor
The Focke-Wulf Fw 200 Condor was a German four-engine aircraft, built as a 1930s airliner and converted to a maritime reconnaissance bomber in World War II.
Focke-Wulf Fw 61
The Focke-Wulf Fw 61, later the Focke-Achgelis Fa 61, was a German experimental helicopter first flown in 1936, generally regarded as the first practical, fully controllable helicopter.
Focke-Wulf Ta 152
The Focke-Wulf Ta 152 was a German high-altitude fighter of World War II, developed by Kurt Tank as the final evolution of the Fw 190.
Focused Energy
Focused Energy is a German laser fusion startup in Darmstadt, founded in 2021 as a spin-off of Technical University Darmstadt, developing direct-drive laser inertial confinement fusion.
Focused ion beam
A focused ion beam (FIB) is an instrument that directs a finely focused beam of ions, typically gallium, onto a sample to mill, image, or deposit material.
Fog computing
Fog computing, also known as fog networking, is a layered computing model coined by Cisco in 2012 that places compute and storage on nodes between end devices and the cloud.
Fog seal
A fog seal is a light spray of diluted asphalt emulsion, applied without aggregate cover, that seals asphalt pavement, reduces raveling, and enriches weathered surfaces.
Foggia Airfield Complex
The Foggia Airfield Complex was a group of more than 30 Allied airfields around Foggia, Italy, used from late 1943 by the Fifteenth Air Force.
Foguang Temple
Foguang Temple (佛光寺) is a Buddhist temple on Mount Wutai in Shanxi, China, whose East Main Hall of 857 is the finest surviving Tang Dynasty timber building.
Fokker
Fokker was a Dutch aircraft manufacturer founded by Anthony Fokker in 1912, famous for World War I fighters, dominant in 1920s civil aviation, and bankrupt by 1996.
Fokker 100
The Fokker 100, certified as the F.28-0100, is a twin-engine regional jet built by Dutch manufacturer Fokker from 1986 to 1996, seating 100 to 122 passengers.
Fokker 50
The Fokker 50 is a twin-engine turboprop regional airliner built by the Dutch manufacturer Fokker as successor to the F.27 Friendship, seating up to 56 passengers on short-haul routes.
Fokker 70
The Fokker 70 is a short-range regional jet for about 80 passengers built by the Dutch manufacturer Fokker as a shortened version of the Fokker 100.
Fokker D.VII
The Fokker D.VII was a German single-seat biplane fighter of World War I, designed by Reinhold Platz and widely regarded as one of the war's best fighters.
Fokker Dr.I
The Fokker Dr.I, also called the Fokker Triplane, was a German single-seat triplane fighter of World War I, famous as the favored aircraft of the Red Baron.
Fokker F.VII
Built by Fokker, the F.VII was a Dutch eight-passenger airliner first flown in 1924. It was used on trans-continental flights and served as the foundation for the F.VIIA-3m and F.VIIB-3m series.
Fokker F27 Friendship
The Fokker F27 Friendship, also known as the F-27, is a Dutch twin-engine turboprop airliner first flown in 1955 to replace the Douglas DC-3 on short-haul routes.
Fokker F28 Fellowship
The Fokker F28 Fellowship is a Dutch twin-engined short- to medium-range jet airliner built by Fokker to complement its F27, first flying in 1967 and remaining in production until 1987.
Fokker–Planck model (machine learning)
A Fokker–Planck model in machine learning uses the Fokker–Planck equation to describe how a probability density evolves over time, underpinning generative modeling, sampling, and density estimation.
Fokko M. Mulder
Fokko M. Mulder is a professor at Delft University of Technology working on energy storage materials, best known for inventing the battolyser, an integrated battery-electrolyser.
Folaga (AUV)
Folaga, named after the Italian word for the coot, is a low-cost modular autonomous underwater vehicle developed in Italy by a research consortium and commercialized by Graal Tech.