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Holden Monaro
Produced by the Australian-based General Motors subsidiary Holden, the Monaro is a two-door coupe from 1968 to 2006, later exported to the United States as the Pontiac GTO.
Holden Special Vehicles
Holden Special Vehicles (HSV) was the Australian performance-car manufacturer that modified and sold high-performance versions of Holden vehicles from 1988 to 2020, building about 90,000 cars, nearly all V8 Holden Commodores.
Holden Torana
The Holden Torana, also sold as the Holden Sunbird, was a small-to-medium car built by Holden in Australia from 1967 to 1980 across four generations.
Holden W. Withington
Holden W. Withington (Holden White Withington) was an American aeronautical engineer who spent his 42-year career at Boeing, helping design the B-52 bomber before retiring in 1983.
Holding pattern
A holding pattern is a racetrack-shaped flight path flown around a holding fix while an aircraft awaits clearance from air traffic control, typically during congestion or bad weather.
Hole punch
A hole punch, also known as a paper puncher, is an office tool that cuts holes in paper so sheets can be stored in a ring binder. Invented by Friedrich Soennecken in 1886.
Hole-drilling method
The hole-drilling method is a semi-destructive technique for measuring residual stresses near a surface: a small hole is drilled and the released strains are measured, standardized as ASTM E837.
Holiday Inn
Holiday Inn is an American hotel brand founded in 1952 in Memphis, Tennessee by Kemmons Wilson and Wallace Johnson, now IHG's upper midscale family and leisure brand.
Holkham Hall
Holkham Hall is an eighteenth-century Palladian mansion on the north Norfolk coast of England, built between 1734 and 1764 for Thomas Coke, 1st Earl of Leicester.
Holland America Line
Holland America Line, or Holland-Amerika Lijn, is a cruise line founded in Rotterdam in 1873 as a passenger and cargo steamship service to New York, now a Carnival Corporation brand.
Holland House
Holland House, originally Cope Castle, is the Grade I listed Jacobean mansion ruin in Holland Park, Kensington, London, built 1603–05 for Sir Walter Cope, home of the Earls of Holland, and largely destroyed by firebombing in the 1940 Blitz.
Holland Tunnel
The Holland Tunnel is a twin-tube vehicular tunnel under the Hudson River between Jersey City, New Jersey, and Lower Manhattan, opened in 1927 as the first designed for automotive traffic.
Holland's schema theorem
Holland's schema theorem, or fundamental theorem of genetic algorithms, is John Holland's 1975 result giving a lower bound on a schema's expected instances after one generation of a genetic algorithm.
Hollander beater
The Hollander beater is a papermaking machine that beats rags into pulp in a circulating tub, invented in the Netherlands in the mid-1600s to replace slow stamping mills.
Hollandse Kust Zuid wind farm
Hollandse Kust Zuid (HKZ) is an offshore wind farm in the Dutch North Sea with 139 Siemens Gamesa turbines and 1,509 MWe capacity, inaugurated in 2023 by King Willem-Alexander.
Hollings Manufacturing Extension Partnership
The Hollings Manufacturing Extension Partnership (MEP) is a NIST program, created in 1988, that helps small and medium-sized U.S. manufacturers through centers in every state.
Holloman Air Force Base
Holloman Air Force Base, established in New Mexico in 1942 as Alamogordo Air Field, is a US Air Force base that trains F-16 and MQ-9 pilots.
Hollow-core fiber
Hollow-core fiber (HCF) is an optical fiber that guides light through a hollow, air- or gas-filled core instead of solid glass, offering lower latency, lower nonlinearity, and record-low signal loss.
Hollow-core slab
A hollow-core slab is a precast concrete floor element with continuous longitudinal voids that reduce self-weight while preserving bending capacity, typically prestressed and used in multi-story buildings.
Hollow-fiber membrane
A hollow-fiber membrane is a fine self-supporting tube with a hollow lumen that acts as a selective filter; thousands bundled in a module serve desalination, water treatment, gas separation, and dialysis.
Hollow-point bullet
A hollow-point bullet, or hollowpoint, is a bullet with a nose cavity that expands on impact, increasing energy transfer while limiting penetration; historically called the dum-dum bullet.
Holly Carlton
Holly Carlton is an American materials scientist and group leader at Lawrence Livermore National Laboratory, known for synchrotron x-ray studies of 3D-printed metals and a 2025 PECASE award.
Holly Energy Partners, L.P.
Holly Energy Partners, L.P. was a midstream master limited partnership that transported petroleum products and crude oil by pipeline until HF Sinclair acquired it in 2023.
Hollyhock House
Hollyhock House is a house museum in Los Angeles designed by Frank Lloyd Wright in 1919–1921 for oil heiress Aline Barnsdall, and Los Angeles's first UNESCO World Heritage Site.
Hollysys Automation Technologies
Hollysys Automation Technologies (和利时) is a Chinese provider of automation and control systems for industry, rail transportation, and nuclear power, founded in 1993 and headquartered in Beijing.
Hollywood Burbank Airport
Hollywood Burbank Airport, also known as Burbank Airport and legally named Bob Hope Airport, serves the Los Angeles area from Burbank, California. Opened in 1930, it got a $1.3 billion replacement terminal in 2026.
Hollywood Rip Ride Rockit
Hollywood Rip Ride Rockit was a steel roller coaster at Universal Studios Florida, open from 2009 to 2025, known for its vertical lift and rider-chosen music.
Holmdel Horn Antenna
The Holmdel Horn Antenna is a microwave horn antenna at Bell Labs' Crawford Hill site in New Jersey, used in the discovery of the cosmic microwave background.
Holmen
Holmen is a Swedish forest industry group headquartered in Stockholm that owns about 1 million hectares of forest and produces paperboard, printing paper, sawn wood products, and renewable energy.
Holmium-doped fiber
A holmium-doped fiber is an optical fiber whose core is doped with holmium ions so it can amplify or generate laser light near 2.1 µm.