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Barramundi
Barramundi (Lates calcarifer, Asian seabass) is an Indo-West Pacific euryhaline fish and protandrous hermaphrodite, farmed globally at about 169,000 tonnes (2017-18) and wild-caught in northern Australia.
Barran temple
The Barran temple, also known as Bar'an Temple or ʿArsh Bilqīs, the Throne of the Queen of Sheba, is a Sabaean sanctuary of the god Almaqah at Marib, Yemen.
Barranan
Barranan (Barrañán, Praia de Barrañán) is a Blue Flag Atlantic beach in Arteixo, A Coruña, Galicia, Spain: 1,200 m of fine white sand, dunes, surfing, the Senda Litoral SA 15-01 coastal path, and La Duna beach club.
Barranca abajo
Barranca abajo is a three-act rural tragedy by the Uruguayan playwright Florencio Sánchez, premiered in Buenos Aires in 1905 and depicting an aging gaucho's loss of his inherited land.
Barrancabermeja
Barrancabermeja, also La Tora, is a district of Santander, Colombia, on the Magdalena River; founded 12 October 1536, municipality in 1922, home of Colombia's largest oil refinery and Ecopetrol's birthplace after the 1951 De Mares Reversión.
Barrandov Studios
Barrandov Studios (Barrandov Studio a.s.), founded 1931 in Prague by Miloš Havel and named after geologist Joachim Barrande, is one of Europe's largest and oldest film studios, with 18 sound stages, a 160,000 m² backlot, and over 5,000 productions including Casino Royale and the Czech New Wave.
Barranquilla
Barranquilla (la Arenosa), Colombia's fourth-largest city on the Magdalena River near the Caribbean, capital of Atlántico; major port and home of the UNESCO-recognized Carnival de Barranquilla.
Barratt Impulsiveness Scale
The Barratt Impulsiveness Scale (BIS) is a self-report questionnaire measuring impulsiveness, introduced by Ernest Barratt in 1959; the current BIS-11 has 30 items scored 30 to 120.
Barre (exercise)
Barre (exercise): low-impact fitness format blending ballet, Pilates, yoga, and strength training. Created by dancer Lotte Berk in London in 1959 after a back injury; brought to New York in 1971; now a global studio trend.
Barre des Écrins
Barre des Écrins, 4,102 m, highest peak of the Massif des Écrins and Dauphiné Alps, France; most southerly 4,000 m Alpine peak; first climbed 25 June 1864 by Whymper, Moore, Walker, Croz, and Almer.
Barreau du Québec
The Barreau du Québec, or Quebec Bar, is the professional order regulating advocates in Quebec under the Professional Code, with 31,501 members on its Roll as of 2026.
Barred owl
Barred owl (Strix varia), a large earless North American forest owl with the "Who cooks for you?" call; native to the east, it expanded to the Pacific Northwest, where it competes with the threatened northern spotted owl and is subject to a federal removal plan.
Barred spiral galaxy
A barred spiral galaxy is a spiral galaxy with a central bar of stars from which the spiral arms begin, a type the Milky Way likely belongs to.
Barrel
A barrel cooker is an outdoor cooking appliance built from a steel drum in which food cooks over charcoal or wood, hung on hooks or placed on grates.
Barrel (unit)
A barrel (bbl) is a unit of volume whose size depends on the commodity: 42 U.S. gallons for crude oil, 31 for beer, and 7,056 cubic inches for dry goods.
Barrel bomb
A barrel bomb is an improvised explosive device, a container filled with explosives and shrapnel dropped from aircraft, used widely in Syria from 2012 and in Sudan.
Barrel racing
Barrel racing: timed rodeo event, cloverleaf pattern around three 55-gallon drums, hundredths-of-a-second timing, five-second penalty per tipped barrel. Women's event run by the WPRA, standard at PRCA rodeos since the Girls Rodeo Association's 1948 founding.
Barrel roll
A barrel roll is an aerobatic maneuver in which an aircraft completes one full roll while simultaneously flying a loop, tracing a horizontal corkscrew path around an imaginary cylinder.
Barrel shifter
A barrel shifter is a combinational digital circuit that shifts or rotates a data word by a variable number of bits in a single clock cycle.
Barrel vault
The barrel vault, also known as a tunnel vault or wagon vault, is the simplest vault: a semicircular arch extended in length to form a tunnel-like ceiling, used since antiquity.
Barrel-aged beer
Barrel-aged beer is beer matured in wooden barrels, typically used bourbon or wine barrels, so the wood and its previous contents flavor the beer before packaging.
Barreleye
Barreleye (Macropinna microstoma), also called spookfish, a small deep-sea fish of the northeastern Pacific at 600–800 m with tubular green eyes inside a transparent head dome; eyes rotate forward to feed, confirmed by MBARI in 2009.
Barremian
The Barremian is the fourth stage of the Early Cretaceous epoch, spanning roughly 126 to 121 million years ago and following the Hauterivian before the Aptian.
Barren Grounds
Barren Grounds (Barrenlands, the Barrens; Dene dechinule, 'land of little sticks'): treeless tundra region of northern Canada west of Hudson Bay, first named by Samuel Hearne in 1770, home of migratory barren-ground caribou herds.
Barren Illusions
Barren Illusions (大いなる幻影, Ôinaru gen'ei), also Barren Illusion, is a 1999 Japanese drama-romance by Kiyoshi Kurosawa, made with Film School of Tokyo students, about Haru and Michi in near-future 2005 Tokyo testing a pollen drug, premiered at Venice 1999.
Barren Island (Andaman Islands)
Barren Island is an uninhabited volcanic island in the Andaman Sea, about 135 km from Port Blair, and the site of India's only active volcano.
Barren plateaus
A barren plateau is a region of the cost-function landscape of a variational quantum algorithm where the gradient vanishes exponentially with qubit count, named by McClean and colleagues at Google in 2018.
Barren plateaus in variational quantum algorithms
Barren plateaus in variational quantum algorithms are regions of a circuit's parameter landscape where gradients vanish exponentially with system size, making variational algorithms like VQE and QAOA untrainable.
Barret Wallace
Barret Wallace is the AVALANCHE leader in Final Fantasy VII and its remake trilogy, a gun-armed father figure from the destroyed town of Corel; designed by Tetsuya Nomura, voiced in English by John Eric Bentley.
Barrett adenocarcinoma
Barrett adenocarcinoma, also called adenocarcinoma arising in Barrett's mucosa, is esophageal adenocarcinoma developing from Barrett metaplastic epithelium via dysplasia; linked to GERD, obesity, smoking, and male sex.