edgepedia

Technology and the built world

61,984 articles

Hohhot hydroelectric plant

The Hohhot hydroelectric plant (呼和浩特抽水蓄能电站, 呼蓄电站) is a 1,200 MW pumped-storage station in Inner Mongolia, China, the region's first, built to balance its wind-heavy grid and fully commissioned in 2015.

Hohhot Jinshan cogen power station

The Hohhot Jinshan cogen power station is a coal-fired combined heat and power station in Hohhot, Inner Mongolia, China, with a listed capacity of at least 3,920 MW.

Hohhot power station

Hohhot power station (呼和浩特热电厂), also known as Hohhot Fengtai power station, is a coal-fired combined heat and power plant of about 1,100 MW in Hohhot, Inner Mongolia, China.

Hohmann transfer orbit

The Hohmann transfer orbit is an elliptical orbit connecting two coplanar circular orbits with two engine burns; Walter Hohmann described it in 1925 as the minimum-propellant transfer.

Hohokam canal systems

The Hohokam canal systems were hand-dug prehistoric irrigation canals in southern Arizona, diverting water from the Salt and Gila rivers onto more than 100,000 acres near Phoenix.

Hoi‐Jun Yoo

Hoi-Jun Yoo (유회준) is a South Korean electrical engineer and KAIST professor since 1998 who designs low-power AI and wearable healthcare chips, including the UNPU accelerator.

Hoist (device)

A hoist, also called a chain hoist or chainfall, is a mechanical device that lifts and lowers loads using chain or wire rope, powered by hand, motor, air, or hydraulics.

Hoka

Hoka (stylized HOKA, originally Hoka One One) is a running shoe brand founded in 2009 in Annecy, France, known for thick midsoles and curved rocker soles, now owned by Deckers.

Hokchi Oil and Gas Field

Hokchi is a shallow-water oil and gas field in the Gulf of Mexico off Tabasco, Mexico, discovered by Pemex in 2009 and producing since 2020.

Hoke effect

The Hoke effect, first reported in 2015 by Eric T. Hoke at Stanford, is the reversible light-induced phase segregation of mixed-halide perovskites into iodide-rich and bromide-rich domains.

Hokkaido Electric Power

Hokkaido Electric Power, also known as Hokkaido Denryoku or HEPCO, is the electric utility serving all of Hokkaido, Japan's northern main island. It was founded in 1951 and is headquartered in Sapporo.

Hokkaido Gas

Hokkaido Gas (北海道ガス) is a Japanese city gas utility headquartered in Sapporo. Founded in 1911, it is one of Japan's regional major gas suppliers, selling gas and electricity in Hokkaido.

Hokkaido Shinkansen

The Hokkaido Shinkansen is a Japanese high-speed rail line run by JR Hokkaido from Shin-Aomori through the Seikan Tunnel to Shin-Hakodate-Hokuto, opened on 26 March 2016, with an extension to Sapporo under construction.

Hōkūleʻa

Hōkūleʻa is a replica of a traditional Hawaiian double-hulled voyaging canoe launched in 1975 by the Polynesian Voyaging Society, best known for sailing across the Pacific using non-instrument navigation.

Hokuriku Electric Power

Hokuriku Electric Power (北陸電力) is a Japanese electric utility, established in 1951, serving Toyama, Ishikawa, and Fukui prefectures from its head office in Toyama City.

Hokuriku Shinkansen

The Hokuriku Shinkansen (北陸新幹線) is a Japanese high-speed rail line linking Tokyo with the Hokuriku region via Nagano, Toyama, and Kanazawa, extended to Tsuruga in 2024 and planned to reach Osaka.

Hokuyo Automatic

Hokuyo Automatic (北陽電機株式会社) is a Japanese sensor manufacturer headquartered in Osaka since 1946, known for compact 2D laser rangefinders, safety laser scanners, and photoelectric sensors.

Hola (VPN)

Hola is a free peer-to-peer VPN and proxy service run by Hola VPN Ltd. of Netanya, Israel, founded in 2008, which routes traffic through other users' devices and sells commercial access through Bright Data.

Holafly

Holafly is a travel technology company founded in 2017 that sells eSIM data plans to international travelers, best known for unlimited-data plans in more than 200 destinations and over 10 million eSIMs sold.

Holcim Group

Holcim Group is a Swiss building materials company headquartered in Zug that produces cement, aggregates, and ready-mix concrete, with over 50,000 employees in 45 markets.

Holden

Holden, also known as General Motors Holden, was an Australian car brand and GM subsidiary that made Australia's own car from 1948 until the brand was retired in 2021.

Holden Camira

The Holden Camira was a mid-size front-wheel-drive sedan built by GM Holden in Australia from 1982 to 1989, winning Wheels Car of the Year 1982.

Holden Caprice

The Holden Caprice, sold as the HSV Caprice, was an Australian full-size luxury sedan produced by Holden from 1974 until 2017 and exported widely as the Chevrolet Caprice.

Holden Commodore

The Holden Commodore is a large car sold by Holden in Australia and New Zealand from 1978 until 2020, built locally in South Australia until October 2017.

Holden Commodore (VE)

The Holden Commodore (VE), also known as the VE Commodore, is a full-size rear-wheel-drive sedan built by Holden in Australia from 2006 to 2013, the first Commodore engineered there from the ground up.

Holden Commodore (VF)

The Holden Commodore (VF), or VF Commodore, is a large rear-wheel-drive sedan, wagon, and ute built by Holden in South Australia from 2013 to 2017.

Holden Commodore (VT)

The Holden Commodore (VT), also known as the VT Commodore, is a full-size car Holden built in Australia from 1997 to 2000, replacing the VS.

Holden Commodore (VY)

The Holden Commodore (VY), also known as the VY Commodore, is a large car built by Holden in Australia from September 2002 to August 2004, when the VZ replaced it.

Holden Commodore (VZ)

The Holden Commodore (VZ), also called the Commodore VZ, is the fourth and final facelift of the VT-generation Commodore, released in August 2004 with new Alloytec V6 engines.

Holden Kingswood

The Holden Kingswood was an Australian full-size car produced by General Motors-Holden as a mid-range model from 1968 to 1980, with the name surviving on a WB-series utility until 1984.