All articles starting with H
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Head of Young Nefertiti
The Head of Young Nefertiti is an unfinished quartzite head of a young queen, usually identified as Nefertiti, carved at Amarna under Akhenaten and held in Berlin's Egyptian Museum.
Head over Heels (Tears for Fears song)
Head Over Heels: 1985 Tears for Fears single from Songs from the Big Chair, written by Orzabal and Smith, produced by Chris Hughes, peaked at No. 3 on the Billboard Hot 100.
Head Protective Devices
Head protective devices are helmets and hard hats that absorb impact energy to reduce head injury in military, industrial, road, and sport settings, spanning steel M1 combat helmets, ANSI Z89.1 and ISO 3873 industrial standards, and rotational-protection technologies like MIPS.
Head restraint
A head restraint is a pad on a vehicle seat or the top of the seat back that limits rearward head movement and reduces whiplash injury in rear collisions.
Head shaving
Head shaving, the removal of scalp hair by razor or clippers, also called tonsure in religious contexts; practiced for devotion (Buddhist, Hindu, Muslim, Christian), military practicality, hair loss management, punishment, and fashion, with results lasting one to three days.
Head shop
A head shop is a retail store selling smoking accessories like glass pipes, water pipes, rolling papers, and grinders; the first, the Psychedelic Shop, opened in San Francisco in 1966.
Head Standard
Head Standard: aluminum-and-plywood sandwich ski created by Howard Head in 1949, sold by HEAD Ski Company from 1950; the most commercially successful early metal ski, with Bostik adhesive and integral steel edge, displacing half of wooden skis by 1960.
Head Start (program)
Head Start is the U.S. federal early childhood program, launched in 1965 under the War on Poverty, providing education, health, nutrition, and family services to low-income children birth to 5 through about 1,600 agencies, serving 40 million children since inception.
Head teacher
A head teacher, also known as a school principal, is the senior teacher who manages a single school, responsible for teaching, behavior, staff, finances, and safety.
Head transplant
Head transplant, also called whole-body transplantation, is an experimental procedure attaching a living head with its brain to a donor body. Performed partially in dogs, mice, and Robert White's 1970 rhesus monkeys (nine-day survival); proposed for humans by Sergio Canavero, with a 2017 cadaver rehearsal, but spinal cord fusion remains unsolved.
Head voice
Head voice (voce di testa) is the upper singing register produced by cricothyroid-dominant, lengthened and thinned vocal folds, labeled M2 in modern frameworks; its meaning overlaps with falsetto and varies across classical, CCM, and female and male pedagogies.
Head-down tilt
Head-down tilt is a positioning method with the head below the feet, used in space medicine to simulate weightlessness, typically at -6° for days to weeks.
Head-driven phrase structure grammar
Head-driven phrase structure grammar (HPSG) is a lexicalist, unification-based theory of syntax introduced by Carl Pollard and Ivan Sag in 1987, where most grammatical information is carried by lexical entries.
Head-mounted display
Head-mounted display (HMD), headset display for VR, AR, and mixed reality; from Sutherland's 1968 Sword of Damocles to modern Micro-OLED headsets and smart glasses, defined by near-eye optics, motion-to-photon latency, and cybersickness.
Head-of-line blocking
Head-of-line (HOL) blocking is a performance problem where the first item in a FIFO queue blocks items behind it, notably in packet switches and TCP.
Head-On
Head-On (Gegen die Wand) is Fatih Akin's 2004 German-Turkish drama starring Birol Ünel and Sibel Kekilli as Hamburg Turks in a sham marriage that turns to love; it won the 2004 Golden Bear and European Film Award.
Head-related transfer function
Head-related transfer function (HRTF): direction-dependent acoustic filter of sound by a listener's head, pinnae, and torso, measured at the ear canal entrance; listener-specific like a fingerprint, basis of binaural VR audio, carrying ITD, ILD, and spectral localization cues.
Head-Smashed-In Buffalo Jump
Head-Smashed-In Buffalo Jump (estipah-skikikini-kots) is a UNESCO World Heritage bison jump in the Porcupine Hills of southwestern Alberta, used by Blackfoot hunters for nearly 6,000 years, with 11-metre-deep bone beds and a 1987 interpretive centre.
Head-up display
A head-up display (HUD), also called a head-up guidance system, projects flight information onto a transparent screen in the pilot's forward view, originating in military aviation.
Headache
Headache: pain in the head or upper neck; headache disorders include primary types (migraine, tension-type, cluster), secondary types such as medication-overuse headache, and affect about 40% of the global population.
Headbangers Ball (MTV)
Headbangers Ball is a heavy metal video program that premiered on MTV in 1987, was abruptly canceled in 1995, and was revived on MTV2 in 2003, hosted by Hatebreed's Jamey Jasta.
Headbanging
Headbanging is the vigorous rhythmic motion of the head and upper body to music, the namesake gesture of heavy metal, credited to Led Zeppelin shows in Boston around 1968.
Headbox
The headbox, also called a flow box, is the device at the wet end of a paper machine that spreads pulp as a uniform thin jet onto the forming wire.
Headbutt
Headbutt: a strike with the forehead or crown against an opponent's head or face. Banned as a foul under MMA Unified Rules, legal and central in Burmese Lethwei (gaung tike); typical force 652 N (men), facial bone injury risk.
Headcrab
Headcrab, the fictional parasitic alien from Valve's Half-Life series; a four-legged leaping creature that attaches to human heads and turns hosts into zombies. Variants include Fast, Poison, Armored, and Reviver; the Combine weaponizes it in Headcrab Shells.
Headgear
Headgear, also called headwear (頭飾), is any covering for the head, spanning hats, ceremonial headdresses, religious coverings, and protective helmets classified as Type I/II and Classes C, G, E under ANSI Z89.1, ISO 3873, and CSA Z94.1.
Headhouse
A headhouse is the portion of a railway terminal without tracks and platforms, holding ticket counters, waiting rooms, and baggage facilities; the term also covers subway and ventilation structures.
Headhunted to Another World
Headhunted to Another World is a manga and anime series where salaryman Uchimura Denosuke is hired by a Demon Overlord to become one of the Four Heavenly Kings.
Headhunters (film)
Headhunters (Hodejegerne) is a 2011 Norwegian crime thriller directed by Morten Tyldum, adapted from Jo Nesbø's novel, starring Aksel Hennie as headhunter and art thief Roger Brown; it became the highest-grossing Norwegian film and earned a BAFTA nomination.
Headhunting
Headhunting is the ritual practice of killing a person and treating the severed head as an object of religious significance, once found in Borneo, India, Melanesia, and Amazonia.