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HMS Warspite (03)
HMS Warspite was a Royal Navy Queen Elizabeth-class battleship launched in 1913 that fought at Jutland and served as Admiral Cunningham's Mediterranean flagship in the Second World War.
HMT Empire Windrush
HMT Empire Windrush, formerly the German liner Monte Rosa, was a British troopship whose 1948 voyage from the Caribbean marked the symbolic start of post-war Caribbean migration to Britain.
HMV Model 102 portable gramophone
The HMV Model 102 is a wind-up, suitcase-style portable gramophone made by the Gramophone Company of Hayes, England, produced from 1929 or 1931 until 1960.
HMX
HMX, also known as octogen or cyclotetramethylenetetranitramine, is a manmade nitramine high explosive discovered in 1941 and used in nuclear devices, plastic explosives, and rocket fuels.
HMY Britannia
HMY Britannia, also known as the Royal Yacht Britannia, was the British Royal Yacht serving Queen Elizabeth II for 44 years until its decommissioning in 1997.
HNA Aviation
HNA Aviation (海航航空集团) is the aviation group of China's HNA Group, centered on Hainan Airlines, headquartered in Haikou and reorganized under Liaoning Fangda Group in 2022.
HO scale
HO scale, also known as H0 gauge, is a model railroad scale of 1:87.1 on 16.5 mm track, named for "Half O" and the most popular scale worldwide.
Ho Seok Park
Ho Seok Park (박호석) is a South Korean chemical engineer and professor at Sungkyunkwan University, working since 2014 on nanomaterials and electrolytes for lithium-ion and zinc batteries.
Ho Won Jang
Ho Won Jang (장호원) is a South Korean materials scientist and professor at Seoul National University since 2012, working on oxide thin films, chemical sensors, and photoelectrochemical water splitting.
Ho-Ping Power Plant
Ho-Ping Power Plant, also written Hoping Power Plant, is a 1,320 MW coal-fired power station near Hualien on Taiwan's north-east coast, owned by Taiwan Cement and selling power to Taipower since 2002.
Hoa Binh hydroelectric plant
The Hoa Binh hydroelectric plant (Nhà máy thủy điện Hòa Bình) is a 1,920 MW dam on the Da River in northern Vietnam, built with Soviet assistance between 1979 and 1994.
Hobart Airport
Hobart Airport, also known as Hobart International Airport, is the main airport serving Hobart, Tasmania, Australia. Opened in 1956 at Cambridge, it handled 2.8 million passengers in 2024–25.
Hobart-class destroyer
The Hobart class is a class of three Aegis-equipped guided missile destroyers of the Royal Australian Navy, built in South Australia and led by HMAS Hobart, commissioned in 2017.
Hobart's Funnies
Hobart's Funnies were specialized British armored vehicles of the Second World War, mostly modified Churchill and Sherman tanks developed under Major-General Percy Hobart that supported the Normandy landings.
Hobbiton Movie Set
Hobbiton Movie Set is a permanent film set near Matamata, New Zealand, built for The Lord of the Rings and now a major tourist attraction.
Hoberman sphere
A Hoberman sphere is an expandable structure of scissor-like rigid struts invented by American designer Chuck Hoberman, best known as a popular expanding toy introduced in 1995.
Hobie Cat
Hobie Cat is a brand of beach-launched sailing catamarans created by surfer and boatbuilder Hobie Alter, whose Hobie 14 (1967) and Hobie 16 (1970) are sailed worldwide.
Hochtief
Hochtief is a German construction and infrastructure company headquartered in Essen. Founded in 1873, it has been majority-owned by Spain's ACS since 2011 and operates through Turner in the US and CIMIC in Australia.
Hod Lipson
Hod Lipson is a roboticist and the James and Sally Scapa Professor at Columbia University, where he directs the Creative Machines Lab and works on machines that design and reproduce themselves.
Hod Oil and Gas Field
Hod is an oil and gas field in the southern Norwegian North Sea, 13 km south of Valhall, discovered in 1974 and producing from chalk reservoirs.
Hodgdon Powder Company
Hodgdon Powder Company, founded by Bruce Hodgdon in 1947, is a family-owned American distributor and marketer of smokeless powder and black powder substitutes headquartered in Shawnee, Kansas.
Hoek–Brown failure criterion
The Hoek–Brown failure criterion is an empirical criterion predicting the peak strength of intact rock and jointed rock masses, introduced by E. Hoek and E.T. Brown in 1980.
Hofburg
The Hofburg, also known as Hofburg Palace, is the former Habsburg imperial palace in central Vienna, the monarchy's seat until 1918 and today the president's office.
Hogan
A hogan (Navajo: hooghan, "place home") is the traditional single-room dwelling of the Diné (Navajo) people, with an east-facing entry, sacred in origin and still used for ceremonies.
Hogshead
A hogshead is a large cask and a unit of liquid capacity, historically used for wine, beer, and colonial tobacco, its size varying with the contents.
Hogwarts Express (Universal Orlando Resort)
The Hogwarts Express is a themed funicular railway at Universal Orlando Resort linking King's Cross Station in Universal Studios Florida and Hogsmeade Station in Islands of Adventure, opened July 8, 2014.
Hohenruppersdorf Oil and Gas Field
Hohenruppersdorf Oil and Gas Field is an oil field in the Vienna Basin, Lower Austria, operated by OMV and producing since around 1939 to 1941.
Hohentwiel
Hohentwiel is an extinct volcano near Singen in Baden-Württemberg, Germany, crowned by fortress ruins first mentioned in 915 and destroyed by French troops in 1800.
Hohenwerfen Castle
Hohenwerfen Castle (Burg Hohenwerfen) is a medieval fortress of the Archbishops of Salzburg standing above the town of Werfen, about 40 kilometers south of Salzburg, Austria.
Hohenzollern Castle
Hohenzollern Castle (Burg Hohenzollern) is a neo-Gothic hilltop castle in Baden-Württemberg, Germany, rebuilt between 1850 and 1867 as the ancestral seat of the House of Hohenzollern.