All articles starting with L
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Long tail
The long tail, or long-tailed distribution, is a probability distribution whose right tail decays so slowly that shifting the threshold barely changes the tail probability.
Long take
Long take (also "oner" or "sequence shot"): a single uninterrupted film shot far longer than conventional editing pace, from Hitchcock's Rope to Russian Ark's 99-minute take; distinct from long shot and long cut.
Long Tall Sally
Long Tall Sally: 1956 Little Richard rock and roll 12-bar blues (Specialty SP572), written with Blackwell and Johnson, R&B #1, pop #6, UK #3; famously covered in one take by the Beatles in 1964.
Long task (web performance)
A long task in web performance is any browser main-thread task running longer than 50 milliseconds without yielding, making the page feel unresponsive; the Long Tasks API detects them.
Long term hematopoietic stem cell
Long-term hematopoietic stem cell (LT-HSC), the most primitive blood stem cell, defined by self-renewal and multipotency; distinguished from ST-HSC and MPP by durable, ≥16-week multilineage reconstitution; purified via Lin− CD34+ CD38− CD90+ markers.
Long Term Parking
Long Term Parking is The Sopranos season 5, episode 12 (May 23, 2004), written by Terence Winter, directed by Tim Van Patten, in which FBI informant Adriana La Cerva is executed by Silvio after Christopher betrays her; it won Emmys for de Matteo and Winter.
Long terminal repeat
Long terminal repeat (LTR): U3-R-U5 DNA sequence flanking retroviral proviruses and LTR retrotransposons, formed during reverse transcription; carries promoter, polyadenylation, and integration signals; ~10% of the human genome.
Long Time Coming (Sierra Ferrell album)
Long Time Coming is Sierra Ferrell's debut album, released August 20, 2021 on Rounder Records; 12 songs, 40 minutes, produced by Gary Paczosa and Stu Hibberd, Metascore 78, with viral YouTube songs In Dreams and Jeremiah.
Long Time No Sea
Long Time No Sea (只有大海知道) is a 2018 Taiwanese family musical drama, Heather Tsui's debut feature, about a Tao boy on Orchid Island training for a national dance competition.
Long time no see
Long time no see is an informal English greeting after a long absence, likely a calque of Chinese hǎo jiǔ bù jiàn via Chinese Pidgin English or Native American pidgin; OED first records it in 1900 (Drannan), popularized by Raymond Chandler in 1939-1940.
Long ton
The long ton, also called the imperial ton, is a British unit of mass equal to 2,240 pounds, about 1,016 kilograms, traditionally used in shipping.
Long track motorcycle racing
Long track motorcycle racing, or sand track racing, is speedway-style oval racing on 700–2,000 m slag tracks with larger, brakeless bikes and heats of eight; FIM World Championship since 1971, plus Long Track of Nations.
Long Turkish War
The Long Turkish War, also called the Fifteen Years' War, was a war between the Ottoman and Habsburg empires from 1593 to 1606, ending in the Peace of Zsitvatorok.
Long Vacation (ロングバケーション)
Long Vacation (ロングバケーション) is a 1996 Fuji TV Getsuku romance drama, 11 episodes written by Eriko Kitagawa, starring Takuya Kimura and Tomoko Yamaguchi; finale rated 36.7%, first overseas remake announced 2026 by Hong Kong's MakerVille.
Long Walk of the Navajo
Long Walk of the Navajo (Hweeldi): 1863-1868 forced removal of about 9,000 Diné to Bosque Redondo, Fort Sumner, New Mexico, ended by the June 1, 1868 treaty returning them home.
Long Walk to Freedom
Long Walk to Freedom is Nelson Mandela's 1994 autobiography, begun secretly on Robben Island in the mid-1970s, smuggled out by Mac Maharaj, completed with Richard Stengel, and ending with his 1994 inauguration.
Long Wall of Sculpture
The Long Wall of Sculpture at Carchemish is a carved stone wall forming the temple of the Storm God's eastern façade, built by King Suhi II in the late tenth century BCE.
Long War (video game mod)
Long War is a fan-made total conversion mod for XCOM: Enemy Unknown and its 2013 expansion XCOM: Enemy Within, developed by the modding group Pavonis Interactive.
Long Wavelength Array
The Long Wavelength Array (LWA) is a radio telescope in New Mexico and California observing at 10 to 88 MHz, the lowest frequencies observable from the ground.
Long Way Down
Long Way Down (2007) is the BBC2 motorcycle docuseries in which Ewan McGregor and Charley Boorman rode BMW R 1200 GS Adventure bikes 15,000 miles in 85 days from John O'Groats to Cape Agulhas, South Africa, directed by David Alexanian and Russ Malkin.
Long Way Home (2025 TV series)
Long Way Home is a 2025 Apple TV+ documentary travel series, the fourth Long Way installment, following Ewan McGregor and Charley Boorman on vintage motorcycles about 10,000 miles from Scotland to England via Scandinavia, the Arctic Circle, and the Baltics, premiering May 9, 2025.
Long Way Home (Ray LaMontagne album)
Long Way Home (2024) is Ray LaMontagne's ninth studio album, released on his own Liula Records, produced with Seth Kauffman, nine tracks in 31 minutes inspired by a Townes Van Zandt lyric, distinct from albums of the same name by Låpsley, Dokken, and Stella Lefty.
Long Way Round
Long Way Round is a 2004 Sky One documentary series and book following actors Ewan McGregor and Charley Boorman riding BMW R 1150 GS Adventure motorcycles 20,000 miles east from London to New York across 12 countries in 115 days; first of the Long Way series.
Long Way Up
Long Way Up (2020) is an Apple TV+ documentary, the third Long Way series, following Ewan McGregor and Charley Boorman 13,000 miles on prototype electric Harley-Davidson LiveWires from Ushuaia, Argentina to Los Angeles through 13 countries in 100 days.
Long weekend
Long weekend: a three-plus-day break from a public holiday adjacent to the weekend. Also called oval weekend or bridge weekend. Covers holiday placement laws, China's weekend swaps, make-up days, and travel effects.
Long Xuyên
Long Xuyên (Long Xuyên) is a riverside city on the Hau River in Vietnam's Mekong Delta, former capital of An Giang province until 30 June 2025, now a ward; founded as Dong Xuyen fort in 1789, provincial city 1999, grade-II city 2009.
Long Yun
Long Yun (龙云) was a Yi military commander and warlord known as the "King of Yunnan," who governed Yunnan until the central government removed him in 1945.
Long-Acting Reversible Contraception
Long-acting reversible contraception (LARC): IUDs and subdermal implants, the most effective reversible birth control, over 99% effective, lasting years, reversible on removal.
Long-baseline interferometry
Long-baseline interferometry is an observational astronomy technique that combines signals from telescopes separated by long distances, resolving fine detail in celestial sources at radio, optical, and infrared wavelengths.
Long-Baseline Neutrino Facility
The Long-Baseline Neutrino Facility (LBNF) is a US facility under construction to send a Fermilab neutrino beam about 1,300 km to the DUNE detector in South Dakota.