All articles starting with E
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Explosion
An explosion is a sudden expansion of gas that rapidly releases energy, creating a damaging pressure wave, as in dust clouds, TNT charges, volcanic blasts, and nuclear detonations.
Explosion in a Cathedral
Explosion in a Cathedral, originally El siglo de las luces, is a 1962 historical novel by the Cuban writer Alejo Carpentier about the French Revolution's arrival in the Caribbean.
Explosions in the Sky
Explosions in the Sky (EitS), formed in Austin, Texas in 1999, is an instrumental post-rock quartet of Chris Hrasky, Michael James, Munaf Rayani, and Mark Smith on Temporary Residence, famed for Friday Night Lights scoring and albums through 2023's End.
Explosive
An explosive is a substance or mixture that produces an explosion when initiated, releasing gas and heat so rapidly that expanding products exert sudden pressure on surroundings.
Explosive belt
An explosive belt is an improvised explosive device strapped to a suicide attacker's body under clothing, first perfected by the Tamil Tigers, whose 1991 attack killed Rajiv Gandhi.
Explosive cyclogenesis
Explosive cyclogenesis, sometimes called bombogenesis, is the rapid deepening of an extratropical cyclone; the resulting storm is colloquially called a bomb cyclone, with hurricane-force winds.
Explosive lens
An explosive lens is an arrangement of explosives with different detonation velocities that shapes a detonation wave into a plane or converging front, developed at Los Alamos for implosion nuclear weapons.
Explosive Media
Explosive Media (Explosive News, اخبار انفجاری) is a Tehran-based outlet behind viral AI Lego-style pro-Iran propaganda videos during the 2026 U.S.-Iran conflict; RRM Canada linked it to Saeed Jalili's circle and estimated up to 200 million viewers in March 2026.
Explosive ordnance disposal (United States Army)
US Army Explosive Ordnance Disposal (EOD), an Ordnance Corps specialty founded in WWII under MAJ Thomas J. Kane, detects, renders safe, and disposes of conventional, IED, and CBRN ordnance worldwide, with teams through group-level formations and NAVSCOLEOD training at Eglin AFB.
Explosive Ordnance Disposal Badge
The Explosive Ordnance Disposal Badge (EOD Badge) is a United States military badge for qualified EOD technicians, approved in 1956 and worn by all services.
Explosive welding
Explosive welding is a solid-state joining process in which controlled detonation accelerates one plate against another, bonding them without melting; it is mainly used to clad steel.
Explosively formed penetrator
An explosively formed penetrator (EFP), also called a self-forging fragment or platter charge, is a warhead that deforms a metal liner into a kinetic slug.
Expo '70 (日本万国博覧会)
Expo '70 (日本万国博覧会), the Japan World Exposition 1970, was the first World Expo in Asia, held in Suita, Osaka, 15 March to 13 September 1970, themed "Progress and Harmony for Mankind", with 77 countries, 64,218,770 visitors, and Taro Okamoto's Tower of the Sun.
Expo '98
Expo '98 (1998 Lisbon World Exposition) was a BIE world exposition, 22 May to 30 September 1998, themed "The Oceans, A Heritage for the Future", with over 10.1 million visits; its site became Parque das Nações.
Expo (software)
Expo is a framework and set of tools for building React Native applications, letting developers write one JavaScript or TypeScript project that runs natively on Android, iOS, and web.
Expo 2000
Expo 2000 Hannover was Germany's first World Expo, held 1 June to 31 October 2000 under the theme Humankind-Nature-Technology. It drew 18.1 million visitors against a 40 million target, leaving a 2.4 billion DM deficit.
Expo 2005 Aichi Commemorative Park
Expo 2005 Aichi Commemorative Park, also called Moricoro Park (モリコロパーク), is a 157-hectare public park in Nagakute, Aichi, Japan, on the former site of Expo 2005, opened July 2006 and housing Ghibli Park since 2022.
Expo 2015
Expo 2015, or Expo Milano 2015, was a World Expo in Milan, Italy, 1 May to 31 October 2015, themed Feeding the Planet, Energy for Life; 21.5 million visitors, 139 participants, 110-hectare site, Milan Charter legacy, MIND redevelopment, and documented cost overruns.
Expo 2017
Expo 2017, officially Expo Astana 2017, was a Specialised Expo held in Astana, Kazakhstan, from 10 June to 10 September 2017 under the theme "Future Energy", the first Expo in Central Asia.
Expo 2020 (إكسبو 2020)
Expo 2020 (إكسبو 2020), or Expo 2020 Dubai, was a World Expo held in Dubai, UAE, 1 October 2021 to 31 March 2022 after a Covid-19 postponement; theme Connecting Minds, Creating the Future; 192 nations, 24.1 million visitors, legacy site Expo City Dubai.
Expo 2025
Expo 2025 Osaka, Kansai (2025 Japan Osaka-Kansai World Expo) was a World Expo at Yumeshima, Osaka, April 13 to October 13, 2025, themed "Designing Future Society for Our Lives," with Sou Fujimoto's Grand Ring, 158 official participants, and about 29 million visits.
Expo 2029
Expo 2029, or International Horticultural Expo 2029 Korat Thailand, is an A1 horticultural exposition in Nakhon Ratchasima, Thailand, 10 November 2029 to 28 February 2030, themed Nature and Greenery, relocated to Pak Chong in 2026.
Expo 67
Expo 67, the 1967 International and Universal Exposition in Montréal, was Canada's centennial World's Fair on man-made islands, themed Man and His World, drawing over 50 million paid visitors.
Exponential backoff
Exponential backoff is a retry strategy in which the delay between attempts grows by a constant factor after each failure, usually combined with jitter to prevent synchronized retries.
Exponential decay
Exponential decay is the process in which a quantity decreases at a rate proportional to its current value, so it falls as an exponential function of time.
Exponential distribution
The exponential distribution, also called the negative exponential distribution, is a continuous probability distribution describing waiting times between independent events occurring at a constant average rate.
Exponential family
The exponential family is a class of probability distributions sharing one exponential density form, including the Gaussian, binomial, Poisson, and gamma, and underlying generalized linear models.
Exponential formula
The exponential formula, also called the polymer expansion, is a theorem of enumerative combinatorics stating that the EGF of all labeled structures equals the exponential of the EGF of connected ones.
Exponential function
The exponential function, also called the natural exponential function, is the mathematical function exp(x) = e^x, with e ≈ 2.718; it is its own derivative and models growth and decay.
Exponential generating functions
An exponential generating function (EGF) attaches to a counting sequence the power series sum a_n x^n/n!, the standard tool of enumerative combinatorics for labeled structures like permutations and set partitions.