edgepedia

Technology and the built world

61,984 articles

Fluxer

Fluxer is a free and open-source instant messaging and VoIP chat app for communities, developed by Swedish company Fluxer Platform AB and self-hostable as an alternative to Discord.

Fluyt

The fluyt, also spelled fluit (Dutch: fluitschip), is a Dutch cargo sailing ship developed in the late 16th century, mainstay of Dutch Baltic trade for 200 years.

Fly Air41 Airways

Fly Air41 Airways is a Croatian ACMI and charter airline founded in 2021 in Zagreb, flying holiday flights on behalf of its German sister airline Sundair.

Fly ash

Fly ash is the finely divided residue from burning powdered coal in power plants, used in concrete as a pozzolan that reacts with lime to form additional cementitious compounds.

Fly ash in concrete

Fly ash in concrete is the use of coal combustion ash as a partial replacement for Portland cement, improving concrete performance and lowering its carbon footprint.

Fly Away Home

Fly Away Home (1996) is a Carroll Ballard family drama starring Anna Paquin and Jeff Daniels, based on Bill Lishman's Father Goose and his real 1993 ultralight-led Canada goose migration from Ontario to Virginia with Joe Duff; released by Columbia, it grossed $36.5 million worldwide.

Fly Me to the Moon

"Fly Me to the Moon", originally titled "In Other Words", is a 1954 song by Bart Howard that became a widely performed jazz standard, best known through Frank Sinatra's 1964 recording with Count Basie.

Fly-by-light

Fly-by-light, or fly-by-optics, is an aircraft flight control technology that sends pilot and computer commands as light pulses through optical fiber, immune to electromagnetic interference.

Fly-by-wire

Fly-by-wire is an aircraft flight control system in which computers transmit the pilot's commands to the control surfaces as electrical signals, replacing the direct mechanical linkage.

Flyability

Flyability SA is a Swiss drone manufacturer founded in 2014 as a spin-off from EPFL in Lausanne, known for its caged Elios drones that inspect confined, hazardous spaces without GPS.

Flyadeal

Flyadeal is a Saudi low-cost airline wholly owned by the Saudia Group, launched in 2017, based in Riyadh, and flying to 34 destinations in 8 countries.

Flyback converter

A flyback converter is an isolated switching power supply, structurally a buck-boost with its inductor split to form a transformer, providing galvanically isolated output above or below the input.

Flyback diode

A flyback diode, also called a freewheeling diode, is a diode wired in reverse parallel across an inductive load to safely recirculate current at switch-off.

Flyback transformer

A flyback transformer is a gapped coupled inductor that stores energy while the primary switch is on and releases it to the output, providing isolation in low-power supplies.

FlyBase

FlyBase is a model organism database of genetic, molecular, and genomic data for the fruit fly Drosophila melanogaster, established in 1992 and serving as the primary online reference for Drosophila research.

Flyboys (film)

Flyboys (2006) is a Tony Bill war drama starring James Franco about the Lafayette Escadrille, American volunteers flying for France in World War I; MGM-distributed, $60M budget, $13.1M US gross, 34% on Rotten Tomatoes.

Flydubai

Flydubai, formally the Dubai Aviation Corporation, is a Dubai-based airline owned by the Investment Corporation of Dubai. Launched in 2009, it flies an all-Boeing 737 fleet to more than 135 destinations.

Flydubai Flight 981

Flydubai Flight 981, also known as the Rostov Airport disaster, was a Boeing 737 flight from Dubai that crashed at Rostov-on-Don, Russia, on 19 March 2016, killing all 62 aboard.

FlyExpress (airline)

FlyExpress is a planned Indian regional airline based in Hyderabad, Telangana, that received a no-objection certificate from the Ministry of Civil Aviation in December 2025 and has not yet begun commercial operations.

Flying ace

A flying ace, also known as an air ace, is a military aviator credited with shooting down five or more enemy aircraft, a term originating in France during World War I.

Flying boat

A flying boat is a seaplane whose boat-shaped fuselage rests on the water, unlike a floatplane on separate floats; the Curtiss NC-4 first crossed the Atlantic in 1919.

Flying buttress

The flying buttress, also known as the arc-boutant, is an exterior arched support carrying vault thrust away from a wall to a freestanding pier, allowing thinner walls and large Gothic cathedral windows.

Flying capacitor converter

The flying capacitor converter, also called the floating-capacitor or capacitor-clamped converter, is a multilevel power-electronic topology introduced in 1992 by T.A. Meynard and H. Foch in Toulouse, France.

Flying car

A flying car, or roadable aircraft, is a vehicle certified to drive on roads and fly as an airplane, a concept dating to 1917 that has never achieved commercial success.

Flying Cloud (clipper)

Flying Cloud was an American clipper ship built by Donald McKay in 1851, best known for a record 89-day passage from New York to San Francisco.

Flying Machine Arena

The Flying Machine Arena is an indoor aerial robotics test space at ETH Zurich, a netted 10 x 10 x 10 meter volume tracked by motion capture and run by Raffaello D'Andrea's institute.

Flying shuttle

The flying shuttle, invented by John Kay in 1733, is a weaving mechanism that throws the shuttle across a loom, letting one weaver work twice as fast.

Flying testbed

A flying testbed is an aircraft or helicopter converted or purpose-built for flight research on engines, rotors, or equipment, an airborne laboratory rather than a prototype.

Flying wing

A flying wing, also known as Nurflügel, is a tailless aircraft deriving lift and control entirely from its wing; Jack Northrop's 1940s bombers led to the B-2 stealth bomber.

Flynas (طيران ناس)

Flynas, also known as National Air Services, is a Saudi low-cost airline based in Riyadh, founded in 2007 and flying to more than 80 destinations in 38 countries.