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Ladder line
Ladder line, also called twinlead or open-wire line, is a balanced radio-frequency transmission line of two parallel conductors, a low-loss feed line popular for HF amateur radio antennas.
Ladder logic
Ladder logic, standardized as Ladder Diagram, is a graphical programming language for programmable logic controllers, first used in 1969 to support the Modicon 084 PLC.
LADEE
LADEE (Lunar Atmosphere and Dust Environment Explorer) was a NASA robotic lunar orbiter that studied the Moon's thin atmosphere and dust, and demonstrated laser communication from lunar orbit.
Lady Be Good (aircraft)
Lady Be Good was a US B-24D Liberator bomber that vanished on its first combat mission over Naples in 1943 and was found crash-landed in the Libyan Sahara in 1958.
Lady Dior
The Lady Dior, also known as the Lady Diana bag, is a structured Dior handbag with Cannage quilting and D.I.O.R. charms, created in 1995 and named for Princess Diana.
Ladybird (web browser)
Ladybird, also known as the Ladybird browser, is a free, open-source web browser with an engine written from scratch, targeting its first alpha release in 2026.
Ladybower Reservoir
Ladybower Reservoir is the largest reservoir in the Peak District, Derbyshire, begun in 1935 and opened by King George VI in 1945 after the villages of Derwent and Ashopton were flooded.
Laem Chabang
Laem Chabang is Thailand's main deep-water port, opened in 1991 on the Gulf of Thailand in Chonburi Province, handling more than 60% of the country's container traffic.
Lærdal Tunnel
The Lærdal Tunnel (Lærdalstunnelen) is a 24,509-meter two-lane road tunnel on the E16 between Lærdal and Aurland, Norway, the longest road tunnel in the world, opened in 2000.
Lafarge (company)
Lafarge is a French building materials company founded in 1833, once the world's largest cement maker and today the French brand of the Swiss group Holcim.
Lafayette Park, Detroit
Lafayette Park is a residential district in Detroit designed by Ludwig Mies van der Rohe, built from 1956 on the site of the razed Black Bottom neighborhood.
LaFerrari
LaFerrari is a limited-edition hybrid hypercar made by Ferrari in Maranello from 2013 to 2016, pairing a 6.3-liter V12 with an electric motor for 950 hp, limited to 499 cars.
Lag screw
A lag screw, also called a coach screw or lag bolt, is a large wood screw with a hexagonal head driven with a wrench for heavy-duty wood construction.
Lagavulin distillery
Lagavulin distillery is a single malt Scotch whisky distillery on the south coast of Islay, Scotland, founded in 1816 and owned by Diageo since 1997.
Lagdo Dam
Lagdo Dam (barrage de Lagdo) is a multipurpose embankment dam and hydroelectric station on the Benue River in northern Cameroon, built from 1978 to 1982 and impounding Cameroon's largest reservoir.
Laggan Oil and Gas Field
Laggan is a gas-condensate field in the West of Shetland region, discovered in 1986 and developed with the Tormore field via a 143 km subsea tieback, with first gas in February 2016.
Lago Oil Field
The Lago Oil Field is a group of petroleum field areas under Lake Maracaibo, Venezuela, developed from 1923 by Lago Petroleum, a Standard Oil of New Jersey subsidiary.
Lagonda
Lagonda is a British luxury automobile marque founded by American engineer Wilbur Gunn in 1899, winner of the 1935 Le Mans 24 Hours and owned by Aston Martin since 1947.
Lagoon Creek power station
Lagoon Creek power station is a natural gas power plant in Haywood County, Tennessee, near Brownsville, owned by the Tennessee Valley Authority and generating 1,444 megawatts, TVA's largest gas-fueled facility.
Lagos-Calabar Coastal Highway
The Lagos-Calabar Coastal Highway is a 700-kilometer federally funded expressway under construction in Nigeria from Lagos to Calabar, begun in March 2024 under President Bola Tinubu.
Lagos–Ibadan Expressway
The Lagos–Ibadan Expressway is a 127.6-kilometer federal expressway linking Lagos and Ibadan in southwestern Nigeria, opened in 1978 as Nigeria's first expressway and its busiest interstate route.
Lagrange (spacecraft)
Lagrange, since renamed Vigil, is an ESA space weather spacecraft that will orbit the fifth Sun-Earth Lagrange point to give days of warning of dangerous solar events.
Lagrange multiplier
A Lagrange multiplier, also called a Lagrangian multiplier, is a scalar introduced for each constraint to find a function's constrained extrema, named after Joseph-Louis Lagrange, who used the idea in his 1788 Méchanique analitique.
LaGuardia Airport
LaGuardia Airport, also known as LaGuardia International Airport (LGA), is a public airport in East Elmhurst, Queens, New York City, opened in 1939 and rebuilt in an $8 billion redevelopment completed in 2022.
Laguna Verde nuclear power plant
Laguna Verde (Central Nucleoeléctrica Laguna Verde) is Mexico's only nuclear power station, on the Gulf of Mexico coast in Veracruz, supplying about 5 percent of the country's electricity.
Lagunillas Oil Field
Lagunillas Oil Field is a giant oil field on the eastern shore and shallow waters of Lake Maracaibo, Venezuela, onstream since 1926, with production peaking in 1967.
Lahore Fort
Lahore Fort, also known as Shahi Qila, is a Mughal-era citadel in Lahore, Pakistan, containing 21 monuments and inscribed on the UNESCO World Heritage List in 1981.
Lahore Junction railway station (لاہور جنکشن ریلوے اسٹیشن)
Lahore Junction railway station (لاہور جنکشن ریلوے اسٹیشن) is Lahore's main station and Pakistan Railways headquarters, built 1859–1860 as a fortified castle-style brick building after the 1857 uprising, with the first train to Amritsar in 1860.
Lahti L-39
The Lahti L-39, nicknamed Norsupyssy, was a Finnish 20 mm semi-automatic anti-tank rifle designed by Aimo Lahti and used by the Finnish Army in World War II.
Lai Chau hydroelectric plant
Lai Chau hydroelectric plant (Thủy điện Lai Châu) is a 1,200 MW run-of-river hydroelectric plant on the Da River in Lai Chau province, Vietnam, inaugurated in 2016.