All articles starting with H
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High dynamic range imaging
High dynamic range (HDR) imaging is a set of photographic and computational techniques that merge several exposures into one image capturing a scene's full range of brightness.
High Earth orbit
High Earth orbit (HEO) is defined as an orbit around Earth above 35,786 kilometers or 2,000 kilometers. It covers geostationary and highly elliptical orbits used for communications and astronomy.
High Efficiency Image File Format
High Efficiency Image File Format (HEIF) is an ISO standard container for storing images and image sequences with metadata, best known through its HEIC variant.
High Efficiency Video Coding
High Efficiency Video Coding (HEVC), also known as MPEG-H Part 2 and ITU-T H.265, is a video compression standard that cuts bitrate about 50 percent versus H.264.
High Energy Photon Source
The High Energy Photon Source (HEPS; 高能同步辐射光源) is a 6 GeV fourth-generation synchrotron light source built in Beijing, the first fourth-generation synchrotron in Asia, which began user operation in 2025.
High Evolutionary
High Evolutionary (Herbert Edgar Wyndham) is a Marvel Comics geneticist supervillain created by Stan Lee and Jack Kirby, debuting in Thor #134 (1966). Known for the New Men, Counter-Earth, Adam Warlock, and as the Guardians of the Galaxy Vol. 3 villain played by Chukwudi Iwuji.
High fantasy
High fantasy, often equated with epic fantasy, is fantasy set wholly in an invented secondary world, defined by setting rather than magic level; term coined by Lloyd Alexander (1971), defined by Tolkien's The Lord of the Rings, and distinct from low fantasy set in the primary world.
High fidelity
High fidelity, often shortened to hi-fi, is the faithful reproduction of recorded music through wide frequency response, wide dynamic range, low noise, and minimal distortion; it boomed after World War II.
High Fidelity (film)
High Fidelity (2000) is a Stephen Frears romantic comedy starring John Cusack, adapted from Nick Hornby's 1995 novel, moving the story from London to Chicago, where record-store owner Rob Gordon recounts his top five breakups after Laura leaves him.
High Fidelity (TV series)
High Fidelity (2020 Hulu series): American comedy-drama adapted from Nick Hornby's 1995 novel, gender-flipping the 2000 John Cusack film. Zoë Kravitz stars as Rob Brooks, a Brooklyn record store owner; canceled after one 10-episode season.
High five
The high five, a two-person open-palm slap gesture of celebration or greeting, emerged in late-1970s American sport; claimed inventors include Glenn Burke and Dusty Baker (Dodgers, October 2, 1977) and Derek Smith (Louisville basketball), with roots in the 1920s low five.
High Flux Isotope Reactor
The High Flux Isotope Reactor (HFIR) is an 85 MW research reactor at Oak Ridge National Laboratory, started in 1965, that supplies neutrons for scattering research.
High Flux Reactor
The High Flux Reactor (HFR) is a 45 MW materials-testing research reactor in Petten, Netherlands, operated by NRG and supplying about 65 percent of European medical isotope demand.
High Flying Bird
High Flying Bird (2019) is a Steven Soderbergh Netflix sports drama, written by Tarell Alvin McCraney, starring André Holland as agent Ray Burke during an NBA lockout, shot on an iPhone.
High frequency
High frequency (HF), also known as shortwave, is the radio band from 3 to 30 MHz, used for long-distance links via ionospheric reflection by amateur, maritime, aviation, and government users.
High German languages
High German languages (Hochdeutsch): West Germanic dialect group defined by participation in the Second (High German) consonant shift, subdivided into Upper and Middle German; also the everyday name for Standard German, spoken by about 96 million people.
High Gothic
High Gothic is the mature phase of Gothic architecture, roughly 1194 to the late 13th century, whose canonical monuments are the French cathedrals of Chartres, Reims, and Amiens.
High Ground (2025 film)
High Ground (2025) is an American action-thriller Western directed by James Bamford, starring Charlie Weber, Jon Voight, Katherine McNamara, and Henry Thomas; a border town sheriff protects a mysterious prisoner from a cartel. Released digitally March 18, 2025 via Republic Pictures; distinct from the 2020 Australian film of the same name.
High Ham
High Ham, Somerset village (Domesday Hane, 1086) with two Roman villas: Low Ham villa with the Dido and Aeneas mosaic, and the Langport Ranges villa excavated in 1861 and by Time Team in 2010.
High Heat
High Heat (Donde hubo fuego) is a 2022 Mexican Netflix action-drama series, 39 episodes, created by José Ignacio Valenzuela and produced by Argos, in which Poncho infiltrates a Mexico City fire station to solve his twin brother's murder.
High Holy Days
The High Holy Days, or Yamim Noraim, are the Jewish holidays of Rosh Hashanah and Yom Kippur, joined by the Ten Days of Repentance in Tishrei.
High Hopes (1988 film)
High Hopes is Mike Leigh's 1988 British comedy-drama about working-class couple Cyril and Shirley in Thatcher-era London, made by improvisation, contrasting class lives, and a 1989 European Film Awards winner.
High Hopes (Panic! at the Disco song)
"High Hopes" (2018) is a horn-driven pop single by Panic! at the Disco from Pray for the Wicked, written by Brendon Urie, Sam Hollander, Ilsey Juber and others; it peaked at No. 4 on the Billboard Hot 100 and set Adult Pop Songs records.
High Hopes 3000
High Hopes 3000 is a 2026 song by ROLE MODEL (Tucker Pillsbury), lead single of the album Chuck Timely & The Hourglass, introducing the alter ego Chuck Timely and becoming his first Billboard Hot 100 hit.
High House
High House: name shared by many English listed buildings, chiefly the Grade I West Acre, Norfolk country house built 1756 for Edward Spelman, refaced c.1829 by architect W.J. Donthorn, owned by the Hamond and Birkbeck families and bought by Antony Gormley in 2010.
High Intensity Gamma-Ray Source
The High Intensity Gamma-Ray Source (HIγS) is a Compton-backscattering gamma-ray facility at Duke University in Durham, North Carolina, producing tunable, polarized gamma-ray beams of 1–100 MeV.
High Intensity Heavy-ion Accelerator Facility
The High Intensity heavy-ion Accelerator Facility (HIAF, 强流重离子加速器装置) is a Chinese national facility in Huizhou, Guangdong, built by the Chinese Academy of Sciences for nuclear physics research.
High Island Offshore Gas Pipeline System
The High Island Offshore Gas Pipeline System is a natural gas pipeline network in the Gulf of Mexico that has carried offshore Texas and Louisiana gas to shore since 1978.
High Island Reservoir (万宜水库)
High Island Reservoir (万宜水库) is Hong Kong's largest impounding reservoir, holding 281 million cubic meters of water and formed by damming the Kwun Mun Channel in Sai Kung; its East Dam is a celebrated geological site.
High Isolated Conical Shaped Mound
High Isolated Conical Shaped Mound, Sankara, Aligarh district, Uttar Pradesh: an ASI centrally protected archaeological mound (N-UP-A78, Agra Circle), recorded by Alexander Cunningham in 1874-75 as stupa-like, with temple ruins and a curved brick.