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EZTV
EZTV, also known as Eztv.it, was a TV-torrent distribution group founded in 2005 that seeded TV releases for sites like The Pirate Bay before dissolving in 2015.
F (New York City Subway service)
The F is a New York City Subway service running at all times between Coney Island in Brooklyn and Jamaica–179th Street in Queens, serving 55 stations.
F connector
The F connector, also known as the F plug or F-type connector, is a threaded 75-ohm coaxial RF connector in which the cable's center conductor serves as the pin.
F Sharp (programming language)
F Sharp (F#) is a functional-first, statically typed programming language for the .NET platform, designed by Don Syme at Microsoft Research and first released in 2005.
F-19
The F-19 was a fictional mid-1980s designation for the US Air Force's classified stealth fighter, popularized by a Testor model kit that sold about 700,000 copies.
F-class gas turbine
An F-class gas turbine is a heavy-duty industrial gas turbine of roughly 150–230 MW, introduced in the early 1990s and the workhorse of combined cycle power plants.
F-Droid
F-Droid is an open source Android app repository, founded by Ciaran Gultnieks in 2010. It hosts apps whose source code anyone can inspect and improve.
F-Secure
F-Secure is a Finnish consumer cybersecurity company founded in 1988 as Data Fellows Oy by Petri Allas and Risto Siilasmaa, protecting about 30 million people with antivirus and privacy products.
F. Don Tan
F. Don Tan is a power electronics and energy systems engineer, elected to the National Academy of Engineering in 2025, who led space power conversion at Northrop Grumman.
F. Karl Willenbrock
Frederick Karl Willenbrock (1920–1995) was an American electrical engineer, IEEE president in 1969, dean of engineering at Southern Methodist University, and a member of the National Academy of Engineering.
F. Paul de Mello
F. Paul de Mello (1927–2022) was an American electrical engineer, born in Goa, India, who specialized in power system dynamics and was a cofounder of Power Technologies, Inc.
F. Peter Boer
F. Peter Boer was an American chemical physicist and industrial research executive, chief technical officer of W.R. Grace and a Yale adjunct professor, who died in October 2022.
F. Robert Naka
F. Robert Naka, born Fumio Robert Naka, was an American electrical engineer who pioneered radar detection and stealth technology and served as the Air Force's twentieth Chief Scientist.
F. Stuart Foster
F. Stuart Foster is a Canadian medical biophysicist at Sunnybrook Research Institute and the University of Toronto who pioneered ultrasound biomicroscopy, co-founded Fujifilm VisualSonics, and was appointed to the Order of Canada in 2025.
F. Thomson Leighton
F. Thomson Leighton, also known as Frank Thomson Leighton, is an American applied mathematician, MIT professor, and co-founder of Akamai Technologies, its chief executive since 2013.
F/A-XX program
The F/A-XX program (FA-XX) is the US Navy's program to develop a sixth-generation carrier-based fighter to replace the F/A-18E/F Super Hornet; Boeing won the $20 billion contract in 2026.
F#
F# is a functional-first, type-safe, type-inferred programming language that runs on .NET, created by Don Syme at Microsoft Research, descended from the ML family and partly inspired by OCaml.
F1 grenade (Soviet)
The F-1 (Ф-1), nicknamed efka or lemonka, is a Soviet defensive fragmentation hand grenade with a cast-iron body, adopted by the Red Army in 1928.
F1TENTH
F1TENTH, now known as RoboRacer, is an open-source autonomous racing platform of self-driving 1:10-scale RC cars, started at the University of Pennsylvania in 2016 for research, benchmarking, and teaching.
F28 Gas Field
F28 Gas Field is a producing natural gas field about 200 km offshore Sarawak, Malaysia, in Block SK308, operated by Sarawak Shell, with first gas in 2012.
F2FS
F2FS (Flash-Friendly File System) is a log-structured file system for Linux designed for flash storage such as SSDs, eMMC, and SD cards, merged into the kernel in 2012.
F5-TTS
F5-TTS is an open-source, fully non-autoregressive zero-shot text-to-speech system based on flow matching, first released in October 2024 and widely used as a voice-cloning baseline.
F5, Inc.
F5, Inc., formerly known as F5 Networks, is an American application delivery and security company in Seattle, founded in 1996 and best known for its BIG-IP and NGINX products.
F5B and electric RC glider competition
F5B and electric RC glider competition is a multi-task event within the FAI F5 series, governed by the FAI Sporting Code Volume F5, including the F5J duration class.
FAA location identifier
A FAA location identifier is a three- or four-character code the Federal Aviation Administration assigns to US airports, heliports, seaplane bases, and other aeronautical facilities.
FAA Office of Aviation History
The FAA Office of Aviation History is the Federal Aviation Administration's program documenting US civil aviation history through its Historical Chronology series and pioneer biographies.
FAA Part 107
FAA Part 107 is the Federal Aviation Administration's rule for commercial and other nonrecreational drone operations in the United States, covering drones under 55 pounds.
FAA Practical Test
The FAA practical test, commonly called a checkride, is the flight evaluation administered by an FAA inspector or authorized evaluator that pilots must pass to receive most pilot certificates and ratings.
Faaz (فعز)
Faaz (فعز) is a family of Pakistani beyond-visual-range air-to-air missiles under development and marketed for export by GIDS, comprising the 100 km FAAZ-1 and the 180 km FAAZ-2.
FAB-500 (ФАБ-500)
FAB-500 (ФАБ-500) is a Soviet-designed 500-kilogram-class high-explosive aerial bomb, fielded from the 1950s and converted with the UMPK glide kit after 2022 for thousands of strikes against Ukraine.