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Fire in the Hole (2024 roller coaster)
Fire in the Hole is an indoor family roller coaster and dark ride at Silver Dollar City in Branson, Missouri, opened in 2024 to replace the 1972 original.
Fire Information for Resource Management System
The Fire Information for Resource Management System (FIRMS) is a NASA web platform delivering near real-time satellite fire and hotspot detections globally within 3 hours of observation.
Fire lance (火枪)
The fire lance (火枪, huoqiang) was a Chinese spear with a gunpowder tube that spewed flame, the first hand-held gunpowder weapon and ancestor of the gun.
Fire lookout
A fire lookout is a person or tower used to detect wildfires early by watching for smoke, a system the US Forest Service built after 1910.
Fire OS
Fire OS, also known as Amazon Fire OS, is Amazon's Android-based operating system for Fire TV devices and Fire tablets, replacing Google services with Amazon's Appstore.
Fire Phone
The Fire Phone, or Amazon Fire Phone, was a smartphone designed by Amazon and announced in 2014, discontinued in 2015 after poor sales and a $170 million write-down.
Fire Point (Ukrainian firm)
Fire Point is a Ukrainian defense manufacturer founded in 2022 during the Russian invasion, known for its FP-1 deep-strike drone and FP-5 Flamingo cruise missile.
Fire Point FP-1
The Fire Point FP-1 is a Ukrainian long-range one-way attack drone produced by Fire Point, first flown in combat in September 2023 and approved for service that May.
Fire pump
A fire pump is a fixed pump that boosts water flow and pressure to sprinklers, standpipes, or hydrants when the water supply alone cannot meet system demand.
Fire retardant
A fire retardant is a chemical or manufactured material that resists the spread of fire when added to combustible products such as polymers, textiles, and electronics.
Fire risk assessment
A fire risk assessment is a systematic evaluation of the risks fire poses to people, property, and the environment, combining the likelihood of fire with its consequences.
Fire safety
Fire safety is the set of practices, systems, and regulations intended to prevent fire, limit its growth and spread, and protect people, property, and the environment from its effects.
Fire sprinkler system
A fire sprinkler system is a fixed water-based fire protection system in which sprinkler heads open individually when heat reaches their activation temperature, controlling fires before the fire department arrives.
Fire test
A fire test is a standardized engineering procedure exposing materials, products, or building elements to controlled fire or heat to measure flammability, fire resistance, and fire spread.
Fire testing
Fire testing is the standardized laboratory testing of how materials and building products behave in fire, covering ignitability, flame spread, heat release, smoke, and fire-barrier endurance.
Fire-King
Fire-King is a line of heat-resistant pressed glass dinnerware and bakeware introduced in 1942 by Anchor Hocking of Lancaster, Ohio, now a staple of vintage collecting.
Fire-tube boiler
A fire-tube boiler is a boiler in which hot combustion gases flow inside tubes passing through a water-filled shell, one of the two basic industrial boiler designs.
Firearm
A firearm is a weapon that uses burning gunpowder to expel projectiles from a barrel, spanning handguns, rifles, shotguns, and machine guns; it originated in medieval China.
Firebag
Firebag is Suncor Energy's largest in situ oil sands operation, a steam-assisted gravity drainage complex 120 kilometers northeast of Fort McMurray, Alberta, producing 215,000 barrels of bitumen daily.
Firebase
Firebase, also known as Google Firebase, is a backend-as-a-service platform owned by Google that provides authentication, databases, storage, hosting, and messaging so developers can build apps without managing servers.
Fireboat
A fireboat, once called a fire-float, is a vessel with pumps and large water nozzles that fights fires on ships and waterfronts; modern boats also perform rescues and medical response.
Firebombing
Firebombing is the aerial or artillery delivery of incendiary bombs designed to destroy targets by fire, becoming the core technique of area bombing in World War II.
Firecracker
A firecracker is a small firework, usually a paper or cardboard cylinder filled with a little explosive, made to produce a loud bang rather than a visual effect.
Firefighting foam
Firefighting foam, including Class A foam, is a water, concentrate, and air mixture applied as a bubble blanket that cools fires and blocks flammable vapors.
Firefly (萤火虫) (vehicle)
The Firefly (萤火虫), also called Nio Firefly, is a small five-door electric hatchback from Firefly, NIO's third brand, launched in China in April 2025 and named World Urban Car 2026.
Firefly Aerospace Blue Ghost
Blue Ghost is a family of robotic lunar landers built by Firefly Aerospace under NASA's CLPS program; its first mission landed 10 instruments on the Moon in 2025.
Firefly algorithm
The firefly algorithm is a nature-inspired metaheuristic introduced by Xin-She Yang in 2009 that solves continuous, discrete, and multiobjective optimization problems by simulating fireflies attracted to brighter candidates.
Firefox
Firefox, also known as Mozilla Firefox, is a free, open-source web browser from Mozilla that renders pages with the Gecko engine instead of Chromium's Blink.
Firefox OS
Firefox OS, originally the Boot to Gecko project, was an open-source mobile operating system by Mozilla that ran only web apps; it launched on smartphones in 2013 and was discontinued in 2016.
Firefox version history
The Firefox version history covers Mozilla Firefox's releases from its 2002 Phoenix origins through Firefox 1.0 in 2004, the 2011 rapid-release cycle, and the 2017 Quantum rebuild.