All articles starting with F

Flevopolder

Flevopolder is the world's largest artificial island, a 970 km² pair of reclaimed polders in the IJsselmeer built between 1950 and 1968 as part of the Zuiderzee Works.

Flex Alexander (Marc Alexander Knox, born 1970, New York City) is an American actor, comedian, dancer, and producer, known for starring in UPN's One on One (2001–2006) and playing Michael Jackson in VH1's Man in the Mirror (2004); married to singer Shanice since 2000.

Flex Capital

Flex Capital is a seed-stage venture capital firm based in California, founded in 2018 by the founding chief executives of LiveRamp, BrightRoll, and other technology companies.

Flex Class Holdings

Flex Class Holdings Inc. was a Delaware-registered online-education company selling finance and IT courses for India, Thailand, and Africa, with claims traceable only to its own press releases.

Flex Ethernet

Flex Ethernet (FlexE) is an Optical Internetworking Forum transport technology, standardized since 2016, that decouples Ethernet MAC rates from physical layer rates through bonding, sub-rating, and channelization.

Flex Lewis

Flex Lewis is the professional name of James Lewis (born 1983), a Welsh retired IFBB bodybuilder who won a record seven Mr. Olympia 212 titles from 2012 to 2018.

Flex Ltd.

Flex Ltd., formerly known as Flextronics, is a Singapore-incorporated electronics manufacturing services and supply chain company headquartered in Austin, Texas. Founded in 1969, it reported $27.9 billion in net sales for fiscal 2026.

Flex Mentallo

Flex Mentallo is a DC Comics superhero created by Grant Morrison and Richard Case, first appearing in Doom Patrol #35 (1990) as a parody of Charles Atlas ads, with reality-warping Muscle Mystery powers; the 1996 Vertigo miniseries with Frank Quitely is his signature work.

Flex room

A flex room is a room in a home built without a fixed purpose, letting owners convert it over time between uses like office, gym, or guest bedroom.

Flex Wheeler

Flex Wheeler (Kenneth Wheeler, born 1965, Fresno, California) is a retired American IFBB professional bodybuilder, four-time Arnold Classic champion and multiple Mr. Olympia runner-up, known as the Sultan of Symmetry, who overcame a broken neck, kidney disease, and leg amputation.

Flex X Cop (재벌X형사)

Flex X Cop (재벌X형사, Chaebol X Detective) is a South Korean SBS action-comedy procedural adapted from the Russian series Silver Spoon, starring Ahn Bo-hyun as chaebol-turned-detective Jin I-soo; season 1 aired 2024 with Park Ji-hyun, season 2 in 2026 with Jung Eun-chae.

Flex-Foot

The Flex-Foot is a carbon-fiber energy-storing prosthetic foot with a C-shaped keel, invented by American amputee Van Phillips and introduced commercially in 1984.

Flexbox

Flexbox (the CSS Flexible Box Layout module) is a one-dimensional CSS layout model for arranging items in rows or columns, letting them grow or shrink to fit available space.

Flexera

Flexera is a privately held American software company headquartered in Itasca, Illinois, selling license management, software asset management, FinOps, and vulnerability intelligence products to more than 50,000 customers.

FlexFoil

FlexFoil is a gapless, shape-morphing wing trailing-edge flap developed by FlexSys Inc. of Ann Arbor, Michigan, and flight-tested by NASA and the Air Force Research Laboratory from 2014 to 2015.

Flexibilia

Flexibilia: an extinct clade of flexible-calyx stalked crinoids, sister to Eucladida within Cladida, comprising orders Taxocrinida and Sagenocrinida; about 82 genera, middle Silurian to end-Permian fossil record.

Flexibility (anatomy)

Flexibility (anatomy): joint range of motion and resistance to rotation, shaped by extracellular matrix, titin, and stretch tolerance; improved mainly by static, dynamic, and PNF stretching.

Flexible AC transmission system

A flexible AC transmission system (FACTS) is an AC transmission system with power electronic-based static controllers that enhance controllability and increase power transfer capability, a definition given by the IEEE.

Flexible assertive community treatment

Flexible assertive community treatment (FACT), also called Function ACT, is a Dutch adaptation of assertive community treatment serving all people with severe mental illness in a catchment area.

Flexible bronchoscopy

Flexible bronchoscopy, also known as flexible fiberoptic bronchoscopy, is a pulmonary procedure in which a thin flexible endoscope is passed through the nose or mouth to visualize and sample the airways.

Oct 10, 2026

Flexible budget

A flexible budget is a management accounting budget expressed across a range of activity levels, so budgeted costs can be recalculated for whatever activity actually occurs.

Flexible Collision Library

The Flexible Collision Library (FCL) is an open-source C++ library for collision detection, distance computation, and continuous collision detection, introduced by University of North Carolina researchers in 2012.

Flexible coupling

A flexible coupling is a mechanical device connecting two rotating shafts that transmits torque while accommodating angular, parallel, and axial misalignment; common types include gear, disc, grid, and elastomeric couplings.

Flexible cystoscopy

Flexible cystoscopy is an endoscopic examination in which a thin, steerable camera tube is passed through the urethra into the bladder to inspect its lining, in use since 1973.

Flexible endoscopy

Flexible endoscopy is a diagnostic and therapeutic procedure in which a bendable fiber-optic or video endoscope is passed into hollow organs to inspect their lining, take biopsies, and deliver treatment.

Flexible fiberoptic laryngoscopy

Flexible fiberoptic laryngoscopy is an office-based endoscopic exam in which a thin, steerable scope passed through the nose views the pharynx and vocal cords during breathing and speech.

Flexible job shop scheduling

Flexible job shop scheduling is an NP-hard optimization problem where each operation can be assigned to any machine in a given subset, with makespan the usual objective.

Flexible manufacturing system

A flexible manufacturing system (FMS) is a computer-controlled system of CNC machine tools, robots, and automated material handling that produces varied parts with little manual intervention.

Oct 22, 2026

Flexible metal–organic frameworks

Flexible metal–organic frameworks (FMOFs), also called soft porous crystals, are porous crystalline solids that reversibly open and close their pores, or breathe, in response to guests, pressure, temperature, or light.