All articles starting with F
15,892 articles
Fixed-point iteration
Fixed-point iteration, also called Picard iteration or successive substitution, is a numerical method that solves equations by repeatedly applying a function to an initial guess.
Fixed-point logic
Fixed-point logic is a family of extensions of first-order predicate logic with operators defining relations as fixed points; its best-known member, least fixed-point logic, captures polynomial time on finite ordered structures.
Fixed-price contract
A fixed-price contract is an agreement where the buyer pays a set amount regardless of the seller's costs, the most common contract model in software development.
Fixed-rate mortgage
Fixed-rate mortgage: home loan with an interest rate set at origination that never changes over the term; also called FRM. Dominant U.S. mortgage type (92% of household mortgages), priced off long-term Treasury yields with a term premium and prepayment option, favored by risk-averse borrowers.
Fixed-satellite service
The fixed-satellite service (FSS) is a radiocommunication service between earth stations at fixed positions, using one or more satellites, defined by the ITU Radio Regulations.
Fixed-target experiment
A fixed-target experiment is a particle-physics experiment in which an accelerated beam strikes a stationary target, producing collisions measured by downstream detectors; it discovered the charm and bottom quarks.
Fixed-term Parliaments Act 2011
Fixed-term Parliaments Act 2011 (FTPA): UK statute setting five-year terms and first-Thursday-in-May elections, with two-thirds or no-confidence routes to early elections; used in 2017 and 2019, repealed by the Dissolution and Calling of Parliament Act 2022.
Fixed-wing aircraft
A fixed-wing aircraft is a heavier-than-air flying machine that generates lift from rigid wings fixed in position, in contrast to helicopters; it includes airplanes and gliders, and first flew in 1903.
Fixer (person)
Fixer (person): a locally based journalist hired by foreign correspondents to arrange interviews, translate, manage logistics and safety, and support reporting abroad; also called local producer; known for uncredited, often risky work.
Fixer Upper (TV series)
Fixer Upper is an American HGTV home renovation reality series (2013–2018) starring Chip and Joanna Gaines of Waco, Texas; five seasons, 78 reveals, later revived as Fixer Upper: Welcome Home on Magnolia Network with spinoffs.
Fixing America's Surface Transportation Act
The Fixing America's Surface Transportation Act, or FAST Act, is a US federal law enacted in 2015 that authorized roughly $305 billion over five years for highways, transit, and rail.
Fiza (फ़िज़ा)
Fiza (फ़िज़ा) is Khalid Mohamed's 2000 Hindi drama debut starring Karisma Kapoor, Hrithik Roshan, and Jaya Bachchan, about a sister searching for her brother lost in the 1993 Mumbai riots.
Fizeau (lunar crater)
Fizeau (lunar crater) is a 107 km large impact crater on the Moon's southern far side. It was named in 1970 to honor French physicist Armand-Hippolyte-Louis Fizeau.
Fizeau interferometer
The Fizeau interferometer is an optical instrument that measures the shape of optical surfaces by interfering light from a reference surface with light from the test surface.
Fiziologiya Peterburga
Fiziologiya Peterburga, or The Physiology of Petersburg, is a two-part almanac of prose sketches about Saint Petersburg edited by Nikolai Nekrasov and published in 1844–1845.
Fizz (cocktail)
Fizz (cocktail family): spirit, citrus, sugar, shaken and topped with sparkling water; the Gin Fizz is the best-known version, first printed in 1876 in Jerry Thomas's guide; includes Silver, Golden, Sloe Gin, Diamond, and Ramos Gin Fizz variations.
Fıkra
Fıkra is a Turkish literary and journalistic term meaning both a short personal opinion column in a fixed newspaper corner and, in folklore, a witty humorous anecdotal tale.
Fıraktın relief
The Fıraktın relief, also spelled Fraktin, is a Hittite rock relief near Kayseri, Turkey, showing King Ḫattušili III and Queen Puduḫepa libating to the Storm-god and Ḫepat.
Fj Labs
FJ Labs is a New York-based venture capital firm co-founded by Fabrice Grinda and Jose Marin, formally established in 2016 with $50 million from Telenor.
Fj Labs Archangel
FJ Labs Archangel I is a Delaware venture capital fund raised by the New York firm FJ Labs, reporting about $117 million sold to 54 investors.
Fjällräven
Fjällräven (Arctic Fox) is a Swedish outdoor clothing and equipment brand founded in 1960 by Åke Nordin in Örnsköldsvik, known for the Kånken backpack, Greenland Jacket, and G-1000 fabric, and owned by Fenix Outdoor.
FJM Group
FJM Group is a Singapore food-court operator, running 12 food courts in Singapore and 3 in Malaysia, sold to BreadTalk Group in 2019 for S$80 million.
Fjord
Fjord: a glacially carved, deep, steep-sided coastal inlet flooded by the sea, distinct from a ria (drowned river valley). Features include floors below sea level, a shallow rock sill at the mouth, and active climate research in Arctic fjords like Kongsfjorden.
Fjord (film)
Fjord is a 2026 drama by Romanian director Cristian Mungiu, starring Sebastian Stan and Renate Reinsve as a devout Romanian-Norwegian couple whose children are seized by Norway's Barnevernet; it won the 2026 Cannes Palme d'Or and echoes the 2015 Bodnariu case.
Fjorgynn Fluctus
Fjorgynn Fluctus, a roughly 414-km IAU-approved fluctus (flow feature) on Jupiter's volcanic moon Io, approved 1997, centered near 11°N 358°W, named for a Norse thunder god.
FK Arkadag
FK Arkadag (Arkadag Futbol Kluby) is a Turkmen football club founded in 2023 by former president Gurbanguly Berdymukhamedov in the smart city of Arkadag; it has won four straight league titles, two Cups, three Super Cups, and the 2024/25 AFC Challenge League.
FK Austria Wien
FK Austria Wien, also known as Austria Vienna or FC Austria, is a Viennese professional football club founded in 1911, with 24 Austrian titles and a record 27 Austrian Cups.
FK Bodø/Glimt
FK Bodø/Glimt, also known as Bodo-Glimt, is a Norwegian football club from Bodø, above the Arctic Circle, that won its first league title in 2020 and reached the 2024/25 Europa League semi-finals.
FK Comae Berenices
FK Comae Berenices (FK Com, HD 117555) is a rapidly rotating, chromospherically active yellow giant in Coma Berenices, the prototype of the FK Comae stars, likely a recent binary merger.
FK Partizan
FK Partizan (Fudbalski klub Partizan), Belgrade football club founded 4 October 1945; 27 league titles, 16 cups, 1966 European Cup runner-up to Real Madrid, 1978 Mitropa Cup winner; plays at Partizan Stadium (29,775 seats).