61,984 articles
Leonard P. Zakim Bunker Hill Memorial Bridge
The Leonard P. Zakim Bunker Hill Memorial Bridge, often called the Zakim Bridge, is a ten-lane cable-stayed bridge carrying I-93 across the Charles River in Boston, opened in 2003.
Leonard Pinchuk
Leonard Pinchuk is a biomedical engineer and inventor at the University of Miami, elected to the National Academy of Engineering in 2012 and known for the polymer SIBS and the TAXUS drug-eluting stent.
Leonardo AW609
The Leonardo AW609, formerly the Bell/Agusta BA609, is a civil tiltrotor aircraft by Leonardo with rotating engine nacelles, first flown in 2003 and still pending FAA certification.
Leonardo de Moura
Leonardo de Moura is a Brazilian computer scientist who created the Z3 SMT solver and Lean theorem prover, and co-founded the Lean FRO at AWS.
Leonardo DRS
Leonardo DRS is an American defense electronics company, founded in 1969 and owned by Italy's Leonardo S.p.A., supplying sensing and power systems to the US military.
Leonardo M-346
The Leonardo M-346 Master is an Italian twin-engine advanced jet trainer and light combat aircraft built by Alenia Aermacchi, first flown in 2004 and chosen by about 20 countries.
Leonardo Rodríguez Alcaine hydroelectric plant
The Leonardo Rodríguez Alcaine hydroelectric plant, built as El Cajón, is a 750 MW hydroelectric station on the Santiago River in Nayarit, Mexico, operated by CFE since 2007.
Leonardo S.p.A.
Leonardo S.p.A., formerly Finmeccanica, is an Italian aerospace, defense, and security company headquartered in Rome and listed on Euronext Milan, ranked 12th among world arms producers.
Leonardo Zeevaert Wiechers
Leonardo Zeevaert Wiechers (1914–2010) was a Mexican geotechnical engineer who designed foundations for Mexico City's Latinoamericana Tower and joined the US National Academy of Engineering.
Leonardo.ai
Leonardo.ai (legally Leonardo Interactive Pty Ltd) is an Australian generative AI platform for images and videos, founded in Sydney in 2022 and acquired by Canva in 2024.
Leonid Levin
Leonid Anatolievich Levin (Леони́д Анато́льевич Ле́вин) is a Soviet-born American computer scientist at Boston University who independently discovered NP-completeness alongside Stephen Cook and won the 2012 Knuth Prize.
Leonid Rudin
Leonid (Lenny) Rudin is an American computer scientist, co-author of the landmark 1992 Rudin–Osher–Fatemi total-variation denoising paper and co-founder and CEO of Cognitech, a Santa Monica forensic video analysis firm.
Leonid Toptunov (Леонід Федорович Топтунов)
Leonid Toptunov (Леонід Федорович Топтунов; 1960–1986) was a Soviet nuclear engineer, the senior reactor control engineer at Chernobyl during the 1986 accident, and died of acute radiation syndrome at 25.
Leonidas Guibas
Leonidas Guibas is a Stanford computer scientist known as a founder of computational geometry, for the quad-edge data structure, and for shape analysis and geometric deep learning.
Leonidas Squadron
The Leonidas Squadron, also known as Selbstopfer, was a late-World War II Luftwaffe suicide unit intended to fly the piloted Fieseler Fi 103R Reichenberg, a manned V-1 flying bomb.
Leopard 1
The Leopard 1 is a West German main battle tank, first delivered in 1965, built for mobility, and serving with more than a dozen countries.
Leopard 2
The Leopard 2 is a German main battle tank developed by Krauss-Maffei in the 1970s, armed with a 120 mm smoothbore gun and used by 18 European countries.
Leopard 2A4M CAN
The Leopard 2A4M CAN is a Canadian main battle tank, an upgraded Leopard 2A4 built by KMW, fielded in Afghanistan from 2010 and deployed to Latvia in 2023.
Leopold Aschenbrenner
Leopold Aschenbrenner is a German-born investor and former OpenAI safety researcher who wrote the 2024 essay Situational Awareness and founded the hedge fund Situational Awareness LP.
Leopold Godowsky Jr.
Leopold Godowsky Jr. (1900–1983) was an American concert violinist and photographic chemist who, with Leopold Mannes, codeveloped Kodachrome, the first practical color transparency film, introduced in 1935.
Leopold Mannes
Leopold Mannes (Leopold Damrosch Mannes, 1899–1964) was an American pianist and composer who co-invented Kodachrome, the first practical color transparency film, with Leopold Godowsky Jr.
Leoš Janáček Airport Ostrava
Leoš Janáček Airport Ostrava (OSR/LKMT), at Mošnov 20 km from Ostrava, is the Czech Republic's largest regional airport: 3,500 m runway, H24, 506,201 passengers in 2025, cargo hub, Moravian-Silesian Region owned.
Lepas (marque)
Lepas is an international automotive marque created by China's Chery Group, positioned as its premium brand of electrified SUVs for export markets outside China, launched globally in 2025.
Lepas L4
The Lepas L4 is a compact SUV from LEPAS, Chery Group's new-energy vehicle brand, first built in July 2025 and sold with petrol or electric power.
Lepton AI
Lepton AI was a U.S.-based AI-inference cloud startup founded in 2023 by former Meta AI researchers Yangqing Jia and Junjie Bai, acquired by NVIDIA in April 2025.
LeRobot
LeRobot is an open-source PyTorch library, dataset format, and low-cost hardware ecosystem for real-world robot learning, created by Hugging Face in 2024 under Rémi Cadène, a former Tesla research scientist.
Leroy H. Smith Jr.
Leroy Harrington Smith Jr., known professionally as Roy Smith, was an American mechanical engineer and pioneer of modern turbomachinery aerodynamics who spent his career at General Electric in Evendale, Ohio.
Leroy M. Fingerson
Leroy M. "Mike" Fingerson (1932–2022) was an American mechanical engineer who co-founded TSI Incorporated, led it for 37 years, and joined the National Academy of Engineering in 1993.
Les Hurtières
Les Hurtières: historic copper and iron mining district at Saint-Georges-d'Hurtières, Maurienne, Savoie, France. Worked from the 13th century to 1930; over 1.5 million tonnes of siderite extracted; now the Grand Filon iron museum.
Les Invalides
Les Invalides, formally the Hôtel national des Invalides, is a Paris complex founded by Louis XIV in 1670 for wounded soldiers, now holding Napoleon's tomb and the Army Museum.