All articles starting with L
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Loch Ness
Loch Ness (Loch Nis) is a large, deep freshwater lake in the Great Glen of the Scottish Highlands, holding more water than any other British lake.
Loch Ness Monster
The Loch Ness Monster, or Nessie, is a legendary creature of Loch Ness, Scotland. Modern legend dates to 1933; the 1934 surgeon's photo was a hoax, and a 2018 eDNA survey found no monster DNA.
Lochaber
Lochaber is a district of the west Scottish Highlands in the Highland council area, home to Ben Nevis and Glen Coe, marketed as the Outdoor Capital of the UK, with tourism about 30% of GDP and a 2024 National Park nomination.
Lochia
Lochia is the normal postpartum vaginal discharge of blood, mucus, and uterine tissue after childbirth, lasting about 2 to 8 weeks, changing from red to pink to whitish, and distinct from menstruation.
Lochinvar
Lochinvar is a freshwater loch in Kirkcudbrightshire, Scotland, about 3.5 miles from St John's Town of Dalry, converted into an impounding reservoir for public water supply in the 1960s.
Lochleven Castle
Lochleven Castle is a ruined medieval castle on an island in Loch Leven, Scotland, best known as the prison of Mary, Queen of Scots in 1567–8.
Lochmaben Stone
Lochmaben Stone, also Clochmabenstane, a glacial erratic standing stone near Gretna, Dumfries and Galloway, Scotland; possible remnant of a nine-stone circle, identified with Locus Maponi, and a medieval Anglo-Scottish border meeting place.
Lochnagar mine
The Lochnagar mine, or Lochnagar crater, was a British explosive charge detonated under German lines at La Boisselle on 1 July 1916, opening the Battle of the Somme.
Lochner era
Lochner era: period of US constitutional history, roughly 1897 (or 1890) to 1937, when the Supreme Court protected liberty of contract via substantive due process, named for Lochner v. New York (1905), ending with West Coast Hotel.
Lochner Treaty
The Lochner Treaty, usually called the Lochner Concession, was an 1890 agreement by which King Lewanika of Barotseland granted the British South Africa Company exclusive mineral rights.
Lochner v. New York
Lochner v. New York, 198 U.S. 45 (1905): Supreme Court case striking down New York's ten-hour Bakeshop Act as violating liberty of contract under the Fourteenth Amendment; 5–4 Peckham decision; namesake of the Lochner era ended by West Coast Hotel v. Parrish (1937).
Lock (water navigation)
A lock, also called a ship lock or navigation lock, is an enclosed chamber with gates that raises or lowers boats between stretches of water at different levels.
Lock and Dam No. 1
Lock and Dam No. 1, also called the Ford Dam, is a lock and hydroelectric dam on the Mississippi River between Minneapolis and St. Paul, completed in 1917.
Lock and Dam No. 1 (Mississippi River)
Lock and Dam No. 1 is a twin-chamber lock and dam on the Mississippi River in Minneapolis, Minnesota, operated by the Army Corps of Engineers and completed in 1917.
Lock and Dam No. 19
Lock and Dam No. 19, also known as the Keokuk Dam, is a navigation lock and hydroelectric dam on the Mississippi River at Keokuk, Iowa, privately built in 1913.
Lock gates and operating mechanisms
Lock gates and operating mechanisms are the gates, valves, and drive machinery that close a navigation lock's chamber and let water in and out, moving vessels between water levels.
Lock keeper
A lock keeper, also called a lock tender or lock operator, operates a canal or river lock, raising and lowering boats between stretches of water at different levels.
Lock of Berenice
The Lock of Berenice (Greek Βερενίκης Πλόκαμος) is an elegiac poem by Callimachus in which the lock of hair Queen Berenice II consecrated rises into the sky as a constellation.
Lock picking
Lock picking: opening a lock without its key by manipulating the mechanism, mainly pin tumblers. Covers picking technique, security pins, the 1851 Hobbs-Bramah contest, locksport, legality, and testing standards.
Lock Up
Lock Up is a 1989 American prison drama directed by John Flynn, starring Sylvester Stallone as a model prisoner targeted by a vengeful warden, played by Donald Sutherland.
Lock Upp (season 1)
Lock Upp: Badass Jail is the first season of the Indian captive reality series Lock Upp, hosted by Kangana Ranaut and won by Munawar Faruqui in 2022.
Lock Upp (season 2)
Lock Upp: Sach Ya Sazaa is the second season of the Indian captive reality show Lock Upp, streaming on Netflix from June 27, 2026, hosted by Farah Khan and Riteish Deshmukh; Shreya Kalra won the Rs 1 crore prize over Shivangi Joshi.
Lock-and-dam navigation works
A lock-and-dam navigation work pairs a dam that maintains a minimum-depth pool with locks that lift or lower vessels, turning a free-flowing river into a staircase of navigable pools.
Lock-in (vortex shedding)
Lock-in, also called synchronization, is the regime of vortex-induced vibration in which vortex shedding locks to a structure's natural frequency over a range of flow velocities.
Lock-in thermography
Lock-in thermography (LIT) is an infrared nondestructive testing method in which heating is periodically modulated and detected, first published in 1988 and used on solar cells and integrated circuits.
Lock, Stock and Two Smoking Barrels
Lock, Stock and Two Smoking Barrels is Guy Ritchie's 1998 British crime-comedy debut, produced by Matthew Vaughn for about £1 million, about friends who owe £500,000 after a rigged card game; it grossed $28 million worldwide and launched Jason Statham and Vinnie Jones.
Lockall
Lockall is a French self-storage startup founded by Alexis de l'Épine in 2020, renting flexible storage units in and around Paris secured with encrypted digital-key technology.
LockBit
LockBit is a ransomware-as-a-service operation whose affiliates split ransoms with its developers; it was the world's most deployed ransomware until law enforcement disrupted it in February 2024.
Lockbox (film)
Lockbox (2026), also known as Winthrop, is a supernatural horror film directed by Daniel Stamm, adapted from Soren Narnia's Knifepoint Horror podcast story The Lock Box, starring Carla Gugino, Lou Taylor Pucci, and Katharine Isabelle, released July 3, 2026 by Aura Entertainment.
Lockdown
Lockdown: a protective procedure restricting movement inside buildings or confining people at home; used in school security protocols (locks, lights, out of sight), UK Martyn's Law, and COVID-19 stay-at-home orders with debated effectiveness.