All articles starting with H
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Half Sword
Half Sword is a physics-based medieval combat simulator by Half Sword Games, published by Game Seer, where players control weapons directly with the mouse in 15th-century Europe; it entered Steam Early Access in January 2026.
Half Ticket (हाफ़ टिकट)
Half Ticket (हाफ़ टिकट) is a 1962 Hindi romantic comedy directed by Kalidas, starring Kishore Kumar as Vijay/Munna, Madhubala, and Pran, with music by Salil Chowdhury; Kishore sang both parts of Aake Seedhi Lagi Dil Pe, and it was Madhubala's last film with husband Kishore Kumar.
Half-bridge inverter
The half-bridge inverter is the simplest single-phase DC-to-AC converter, using two semiconductor switches and a DC supply split by two capacitors, used in solar inverters, induction cookers, and motor drives.
Half-caste
Half-caste is an offensive term for a person of mixed racial parentage, first recorded 1785–95 as Anglo-Indian from half plus Portuguese-derived caste; once a colonial administrative label, now replaced by mixed-race.
Half-cut cell
A half-cut cell, also called a half-cell, is a silicon solar cell cut in half by laser, halving its current to cut resistive losses and improve shade tolerance.
Half-diminished seventh chord
Half-diminished seventh chord (ø7, m7♭5, minor seventh flat five): a diminished triad plus minor seventh, diatonic as viiø7 in major and iiø7 in minor, differing from the fully diminished seventh only in the seventh.
Half-graben
A half-graben is an asymmetric area of subsidence controlled by hanging-wall subsidence above a single basin-margin normal fault, and is the most common structure in syn-rift settings, typically 25 to 100 km long.
Half-Heusler
Half-Heusler compounds are ternary intermetallics of composition XYZ with a non-centrosymmetric cubic structure, leading thermoelectric materials that convert waste heat into electricity at medium to high temperatures.
Half-Heusler thermoelectric modules
A half-Heusler thermoelectric module is a solid-state generator converting heat into electricity via p-type and n-type half-Heusler alloy legs, suited to medium- and high-temperature waste heat recovery.
Half-Heusler thermoelectrics
Half-Heusler thermoelectrics are ternary intermetallic compounds with the MgAgAs-type crystal structure that convert heat into electricity through the Seebeck effect, led by XNiSn and XCoSb.
Half-life
Half-life is the time required for half of the atoms of a radioactive substance to decay, a concept also applied to drugs and chemicals in the environment.
Half-Life (series)
Half-Life is Valve's first-person shooter series: Half-Life (1998), Half-Life 2 (2004), the Episodes, and VR title Half-Life: Alyx (2020), known for cutscene-free storytelling and long sequel gaps.
Half-Life (video game)
Half-Life is a 1998 first-person shooter by Valve, following physicist Gordon Freeman through an alien-overrun research facility, and winning more than 50 Game of the Year awards.
Half-Life 2
Half-Life 2 (HL2) is Valve's November 16, 2004 Source-engine first-person shooter starring Gordon Freeman in City 17, famous for the Gravity Gun, a 2003 source-code leak, Metacritic 96, and the 2024 20th Anniversary Update.
Half-Life 2: Episode One
Half-Life 2: Episode One (originally Aftermath) is Valve's 2006 Source-engine first-person shooter continuing Half-Life 2, with Gordon Freeman and Alyx Vance escaping City 17; first of a planned trilogy, later in The Orange Box.
Half-Life 2: Episode Two
Half-Life 2: Episode Two (HL2:EP2) is Valve's 2007 Source-engine first-person shooter, second in a planned trilogy after Half-Life 2, set in rural White Forest, released in The Orange Box, scoring 90 on Metacritic.
Half-Life VR but the AI Is Self-Aware
Half-Life VR but the AI Is Self-Aware (HLVRAI) is a 2020 improv machinima series by WayneRadioTV: Garry's Mod VR playthrough of Half-Life with friends voicing self-aware AI characters Dr. Coomer, Bubby, Tommy, and Benrey, streamed on Twitch and edited for YouTube, with a Half-Life 2 sequel from 2026.
Half-Life: Alyx
Half-Life: Alyx is Valve's VR-only first-person shooter, released 23 March 2020 on Source 2, set between Half-Life and Half-Life 2, starring Alyx Vance against the Combine; Metacritic 93, later ported standalone to Steam Frame.
Half-Life: Blue Shift
Half-Life: Blue Shift is a 2001 Gearbox expansion for Half-Life, originally Dreamcast content, starring security guard Barney Calhoun at Black Mesa; it shipped with the HD model pack and bundled Opposing Force in North America.
Half-Life: Full Life Consequences
Half-Life: Full Life Consequences, also written Halflife: Full Life Consequences, is a 2006 squirrelking fan fiction about John Freeman, Gordon Freeman's brother, famous for its broken English and Djy1991's 2008 Garry's Mod machinima adaptation.
Half-mast
Half-mast, or half-staff in American English, is flying a flag below the top of its pole to signal mourning; defined positions (two-thirds up in UK, halfway in Canada), procedures, and authorized occasions differ by country.
Half-pass
Half-pass: a dressage lateral movement combining forward and sideways travel on two tracks with bend in the direction of travel and crossing legs; built on shoulder-in and travers, appearing from Third Level upward.
Half-power bandwidth method
The half-power bandwidth method is a frequency-domain technique that estimates a vibrating system's damping ratio from the width of its resonance peak, at the 3 dB points.
Half-precision floating-point format
Half-precision floating-point format, also called FP16 or binary16, is a 16-bit IEEE 754 encoding that stores numbers in half the memory of single precision, widely used in graphics and machine learning.
Half-reaction
A half-reaction is the oxidation or reduction part of a redox reaction, written with electrons shown explicitly; balanced halves are added so electrons cancel, and tabulated half-reactions give electrode potentials.
Half-track
A half-track is a vehicle steered by front wheels and driven by rear caterpillar tracks, best known from the World War II M3 and German Sd.Kfz. 251 carriers.
Half-wave dipole
A half-wave dipole is a center-fed wire antenna cut to nearly half the operating wavelength, resonant at about 73 ohms and first demonstrated by Heinrich Hertz in 1886.
Half-wave plate
A half-wave plate (λ/2 plate) is a birefringent optical retarder that introduces a 180-degree phase difference between polarization components, rotating linearly polarized light by twice the angle to its fast axis.
Halfaya oil field
The Halfaya oil field is a supergiant oil field in Missan governorate, southeastern Iraq, holding about 4.1 billion barrels of oil and producing roughly 400,000 barrels per day.
Halfback (American football)
Halfback (HB), also called tailback, is the offensive American football backfield position that carries the ball on most rushing plays; the primary running back, distinct from the blocking fullback.