61,984 articles
Huygens (spacecraft)
Huygens was a European Space Agency probe that landed on Saturn's moon Titan on 14 January 2005, the first landing in the outer Solar System.
Hveem mix design method
The Hveem mix design method is an empirical procedure for designing asphalt paving mixtures, developed by Francis N. Hveem in California in the late 1920s.
Hwacha (화차)
The Hwacha (화차) was a Joseon Korean multiple rocket launcher on a two-wheeled cart, developed under King Munjong in 1451 to fire up to 100 rocket arrows.
Hwange power station
Hwange Power Station, also called Hwange Thermal Power Station, is a coal-fired plant in northwestern Zimbabwe operated by the Zimbabwe Power Company, expanded to 1,520MW in 2023.
Hwange, Zimbabwe
Hwange, formerly Wankie, is a coal-mining town in north-western Zimbabwe built around the colliery that has worked the Hwange coalfield since 1902, and the site of the country's largest power station.
Hwangnyongsa
Hwangnyongsa (황룡사) was the largest Buddhist temple of Korea's Silla kingdom, founded in Gyeongju in 553 as the state temple and burned by Mongol forces in 1238.
Hwaseong (Samsung campus)
Hwaseong is Samsung Electronics' semiconductor manufacturing and research campus in Hwaseong, Gyeonggi Province, South Korea, home to the S3 and V1 foundry lines and producing DRAM, NAND flash, and advanced EUV chips.
Hwasong-11C (화성-11C)
Hwasong-11C (화성-11C), also rendered Hwasong-11Da and designated KN-30, is an enlarged North Korean solid-fuel short-range ballistic missile built to carry warheads of up to 2.5 tons.
Hwasong-11D (화성-11D)
Hwasong-11D (화성-11D), also designated Hwasong-11Ra or KN-35, is a North Korean solid-propellant short-range ballistic missile, a smaller variant of the KN-23 first tested in April 2022 and built for mass salvo launches.
Hwasong-16B (화성-16B)
Hwasong-16B (화성-16B), also rendered Hwasongpho-16-Na, is North Korea's first solid-fueled intermediate-range ballistic missile, designed to carry a hypersonic glide vehicle and first tested in April 2024.
Hwasong-19 (화성-19)
Hwasong-19 (화성-19), also designated Hwasongpho-19 or HS-19, is a North Korean three-stage, solid-fuel intercontinental ballistic missile first flight-tested on October 31, 2024, the largest known road-mobile ICBM in the world.
Hwasong-20 (화성-20)
Hwasong-20 is a North Korean solid-fuel, road-mobile intercontinental ballistic missile unveiled at an October 2025 parade, its third solid-fuel ICBM type, with an estimated 15,000 km range.
Hwinfo
HWiNFO, short for Hardware Information, is a hardware analysis and sensor-monitoring utility for Windows, developed by Martin Malík since 1995 and free for non-commercial use.
Hyatt
Hyatt, formally Hyatt Hotels Corporation, is a Chicago-based hospitality company founded by Jay Pritzker in 1957, operating more than 1,450 hotels and resorts in 82 countries.
Hyatt Regency
Hyatt Regency is an upper-upscale, full-service hotel brand of Hyatt Hotels Corporation aimed at business travelers and large meetings, with more than 200 hotels and resorts in over 40 countries.
Hyatt Regency walkway collapse
The Hyatt Regency walkway collapse, also known as the Hyatt Regency disaster, was a 1981 structural failure in Kansas City, Missouri, in which two suspended hotel skywalks fell, killing 114 people.
Hybrid A*
Hybrid A is a path-planning algorithm for non-holonomic vehicles such as cars, introduced by Dmitri Dolgov and colleagues at Stanford and used in the 2007 DARPA Urban Challenge.
Hybrid Air Vehicles Airlander 10
The Airlander 10, nicknamed the Flying Bum, is a British hybrid aircraft by Hybrid Air Vehicles carrying 100 passengers or 10 tonnes of freight, with up to five days airborne and no runway needed.
Hybrid airship
A hybrid airship is a powered lighter-than-air vehicle that derives lift from both buoyant gas and aerodynamic hull shape, letting it load and unload without ballast.
Hybrid attention–SSM architectures
A hybrid attention–SSM architecture is a language-model design that interleaves a minority of full-attention layers with a majority of linear-time state-space layers, keeping exact retrieval while cutting memory cost.
Hybrid automatic repeat request
Hybrid automatic repeat request (HARQ) is an error-control method for wireless communication that combines forward error correction coding with ARQ retransmission, and is implemented in standards such as LTE and 5G NR.
Hybrid beamforming
Hybrid beamforming is a signal processing technique for millimeter-wave massive MIMO systems that splits beamforming between an analog RF phase-shifter network and a digital baseband precoder.
Hybrid bicycle
A hybrid bicycle, or hybrid bike, blends road and mountain bike features, with flat handlebars, an upright position, and slick tires for commuting and leisure riding.
Hybrid bonded-bolted joint
A hybrid bonded-bolted joint is a structural connection joining materials with both adhesive bonding and bolts, combining the bondline's even load distribution with the bolts' damage tolerance.
Hybrid bonding
Hybrid bonding is a 3D chip integration technology joining semiconductor dies with dielectric and copper-to-copper bonds in one step, enabling far denser interconnects than solder microbumps.
Hybrid coordination function
The hybrid coordination function (HCF) is the IEEE 802.11e medium access control technique providing quality of service in wireless LANs, combining the contention-based EDCA and the polling-based HCCA access methods.
Hybrid coupler
A hybrid coupler is a four-port passive microwave device that divides an input signal into two equal-power outputs 90° or 180° apart in phase, with the fourth port isolated.
Hybrid drive
A hybrid drive, or solid state hybrid drive (SSHD), combines a hard disk drive with a small NAND flash cache that speeds access to frequently used files.
Hybrid electric aircraft
A hybrid electric aircraft is an aircraft whose propulsion combines a fuel-burning engine with electric motors and onboard batteries, sitting between conventional and all-electric aircraft.
Hybrid electric vehicle
A hybrid electric vehicle (HEV) is a vehicle pairing an internal combustion engine with one or more electric motors and a battery, combining liquid fuel with reclaimed braking energy.