All articles starting with H
20,046 articles
Hook echo
A hook echo is a hook-shaped region of radar reflectivity in supercell thunderstorms, formed when precipitation wraps around the rotating mesocyclone, and a key indicator in tornado warning decisions.
Hook length formula
The hook length formula is a 1954 theorem of combinatorics giving the number of standard Young tableaux of a shape, and the dimensions of symmetric group representations.
Hook of Holland
Hook of Holland (Hoek van Holland) is a coastal district of Rotterdam, South Holland, at the mouth of the Nieuwe Waterweg. Founded with the canal works of 1866-1872, annexed by Rotterdam in 1914, it hosts the Maeslantkering storm surge barrier and the Stena Line ferry to Harwich.
Hook sword
The hook sword (双钩), or double hook, is a Chinese weapon with a hooked blade and crescent guard, wielded in pairs and dating to the Qing era.
Hook, C-terminal
Hook, C-terminal (IPR008636, Hook_C; Pfam PF05622) is the divergent cargo-binding domain of Hook dynein adaptor proteins, following the N-terminal Hook domain and three coiled-coils; it mediates isoform-specific organelle binding such as Hook3 Golgi targeting.
Hookah
النارجيلة (narghile, hookah, shisha, argileh): a water pipe for smoking tobacco, originating in Persia and India, with smoke drawn through water; one session equals 100+ cigarettes per WHO.
Hookah lounge
Hookah lounge (shisha lounge, hookah bar): a hospitality venue where customers smoke flavored waterpipe tobacco for a fee. Known for group sessions, heavy indoor PM2.5 and CO levels, and smoke-free-law exemptions in many US states.
Hooke (Martian crater)
Hooke is a 139 km impact crater on Mars at 44.86°S, 315.60°E, near the northern edge of the Argyre basin. It contains two nested impact structures, dunes, yardangs, and seasonal carbon dioxide frost, and is named for Robert Hooke.
Hooke's law
Hooke's law, or the spring equation, is the physical law that an elastic object's deformation is directly proportional to the deforming force, stated by Robert Hooke in 1660.
Hooked on a Feeling
"Hooked on a Feeling": pop song by Mark James, recorded by B.J. Thomas (1968), famous through Blue Swede's 1974 "ooga-chaka" version, the first Swedish Billboard No. 1, revived by Reservoir Dogs, Ally McBeal, and Guardians of the Galaxy.
Hooked on Phonics
Hooked on Phonics is a commercial learn-to-read program using systematic phonics, created in the 1980s and sold today as an app for children ages 3 to 8.
Hooked on You (每当变幻时)
Hooked on You (每当变幻时, Mui dong bin wan si) is a 2007 Hong Kong comedy-drama directed by Law Wing-cheong, produced by Johnnie To's Milkyway Image, starring Miriam Yeung and Eason Chan as wet-market rivals in a 1997–2007 handover-decade romance.
Hooker Chemical Company
Hooker Chemical Company, also known as Hooker Chemical, was an American chemical maker at Niagara Falls, New York, known for the Love Canal toxic waste disaster.
Hooker Icefield
Hooker Icefield is an official-named icefield on the British Columbia-Alberta boundary in the Canadian Rockies' Kootenay Land District, about 907 km² with 70 peaks, highest Mount Fryatt at 3361 m, near Hooker, Scott, and Kane glaciers.
Hookipa Biotech
Hookipa Biotech, now HOOKIPA Pharma Inc., is a clinical-stage biotechnology company founded in Austria in 2011 that developed arenavirus-based immunotherapies for cancer and infectious disease.
Hooksieler Surf Club e V.
Hooksieler Surf Club e.V. (HSC), founded 19 August 1981, is a German windsurfing club with over 200 members at the tide-independent Hooksmeer in Hooksiel, Wangerland, Lower Saxony, known for its annual Hooksmeer-Regatta and on-site surf school.
Hookup culture
Hookup culture: norms of casual sexual encounters without relationship commitment, associated with US college life. Rooted in 1920s socializing; GSS data show no increase in partners or frequency versus earlier eras.
Hookworm
Hookworm is an intestinal parasitic nematode infection of humans, caused chiefly by Necator americanus and Ancylostoma duodenale, in which larvae in soil penetrate the skin and feeding worms cause iron deficiency anemia.
Hookworm infection
Hookworm infection: intestinal parasitism by Ancylostoma duodenale, A. ceylanicum, or Necator americanus, acquired through skin penetration by soil larvae; causes iron-deficiency anemia in roughly 406-480 million people, treated with albendazole or mebendazole.
Hoola
Hoola (Hulla, Korean 훌라) is a Korean rummy card game derived from Japanese Seven Bridge: 2-5 players, seven cards each, special sevens, blasts, knocks, and Battle Hoola discard-claiming.
Hooley Smith
Reginald Joseph "Hooley" Smith, Canadian ice hockey forward (born Toronto; birth year 1903 or 1905; died 1963): 1924 Olympic gold with the Toronto Granites, Stanley Cups 1927 and 1935, Hockey Hall of Fame 1972.
Hooliganism
Hooliganism, or football hooliganism, the "English disease": competitive violence by organized fan firms against rival fans. Key facts: 1,963 arrests in England and Wales 2025-26, 2,460 banning orders, £70m annual policing cost, Heysel 1985 and Taylor Report turning points.
Hooman Davoudiasl
Hooman Davoudiasl is a theoretical physicist at Brookhaven National Laboratory in Upton, New York, known for work on warped extra dimensions and dark matter cosmology, and a 2007 PECASE awardee.
Hooman Kamel
Hooman Kamel is an American neurologist and clinical scientist at Weill Cornell Medicine known for research on stroke prevention, especially the link between cardiac disease and ischemic stroke.
Hoon Lee
Hoon Lee (born 1973) is the American actor (Tong Hoon Lee) known for Job in Banshee, Splinter in Teenage Mutant Ninja Turtles, Broadway's The King and I, and Lee in Netflix's 2026 East of Eden; distinct from Korean actor Lee Hoon.
Hoop cheese
Hoop cheese, also called Bakers or Red Ring cheese, is a traditional Southern US cow's-milk cheese pressed in a round hoop mold, sold fresh in wax, moister than cheddar, and used in pimento cheese and Eastern North Carolina cheese biscuits.
Hoop Dreams
Hoop Dreams (1994) is Steve James's Kartemquin documentary following Chicago teenagers William Gates and Arthur Agee for five years as they chase NBA dreams; Sundance Audience Award winner, Oscar-snubbed, National Film Registry inductee.
Hooper (film)
Hooper is a 1978 American action comedy directed by Hal Needham and starring Burt Reynolds as an aging Hollywood stuntman whose top position is challenged by a younger rival.
Hoopoe
Hoopoe (Upupa epops, Common or Eurasian Hoopoe): a crested Bucerotiformes bird of family Upupidae, sister to woodhoopoes and hornbills; known for antibiotic-producing Enterococcus symbionts in its uropygial gland, egg-smearing, and Palearctic-Africa migration.
Hoops (TV series)
Hoops is a 2020 Netflix adult animated sitcom created by Ben Hoffman, starring Jake Johnson as foul-mouthed Kentucky high school basketball coach Ben Hopkins. Ten TV-MA episodes premiered August 21, 2020; critically panned (14% on Rotten Tomatoes) and canceled after one season in December 2020.