Scientists, inventors, and mathematicians
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- L. E. J. BrouwerDutch mathematician and logician
- L'Oréal-UNESCO For Women in Science AwardsScientific award
- La Ferté-en-OucheLa Ferté-en-Ouche (French pronunciation: , literally La Ferté in Ouche) is a commune in th
- Lac des SettonsThe Lac des Settons (Lake of the Settons) is a reservoir in the Nièvre department, France,
- Lady Anne MonsonEnglish botanist and collector of plants and insects
- Ladyzhenskaya's inequalityIn mathematics, Ladyzhenskaya's inequality is any of a number of related functional inequa
- LaMarcus Adna ThompsonAmerican inventor and businessman (1848–1919)
- Landau distributionIn probability theory, the Landau distribution is a probability distribution named after L
- Landau–de Gennes theoryIn physics, Landau–de Gennes theory describes the NI transition, i.e., phase transition be
- Landau–Squire jetIn fluid dynamics, Landau–Squire jet or Submerged Landau jet describes a round submerged j
- Landau–Zener formulaThe Landau–Zener formula is an analytic solution to the equations of motion governing the
- Landtag of the Republic of BadenThe Landtag of the Republic of Baden was the representative legislative body for the Repub
- Lankester Botanical GardenThe Lankester Botanical Gardens (also known as the Jardín Botánico Lankester or Charles H.
- LankwitzLankwitz (German pronunciation: ) is a German locality (Ortsteil) within the borough (Bezi
- Lara MahalLara K. Mahal is an American chemist who is the Canada Excellence Research Chair in Glycom
- Larissa SuzukiBrazilian-Italian-British computer scientist
- Larry SmarrLarry Lee Smarr is a physicist and leading pioneer in scientific computing, supercomputer
- Lars OnsagerNorwegian-American physical chemist and theoretical physicist (1903-1976)
- Lars VegardLars Vegard (3 February 1880 – 21 December 1963) was a Norwegian physicist who is a pionee
- László BíróHungarian-Argentine inventor (1899–1985)
- Latham of BradwallLatham of Bradwall is a family whose seat was at Bradwall Hall, in the township of Bradwal
- Laughlin wavefunctionIn condensed matter physics, the Laughlin wavefunction is an ansatz, proposed by Robert La
- Laura BassiItalian physicist and academic (1711–1778)
- Laura Bassi (icebreaker)Laura Bassi (formerly Polar Queen and RRS Ernest Shackleton) is an icebreaking research ve
- Laura BoultonAmerican ethnomusicologist
- Laura FerrareseItalian astrophysicist
- Laura-Ann PetittoAmerican psychologist and neuroscientist (born c. 1954)
- Lauren V. WoodAmerican allergist, immunologist
- Laurence LanfumeyFrench neuroscientist
- Lawrence BraggAustralian-born British X-ray crystallographer (1890–1971)
- Lawrence HargraveAustralian engineer and inventor (1850–1915)
- Lazzaro SpallanzaniItalian priest, biologist and physiologist (1729–1799)
- LCF notationIn the mathematical field of graph theory, LCF notation or LCF code is a notation devised
- Leeuwenhoek MedalDutch science award
- Legal rights of women in historyThe legal rights of women refers to the social and human rights of women. One of the first
- Legion of HonourHighest French order of merit
- LeidenCity and municipality in South Holland, Netherlands
- LeiderdorpLeiderdorp (Dutch pronunciation: ) is a town and municipality in the western Netherlands,
- Leland H. HartwellAmerican biologist (born 1939)
- Lena B. Smithers HughesAmerican botanist
- Lena Frances EdwardsAmerican doctor
- Lene HauDanish physicist and educator (born 1959)
- Leo EsakiJapanese physicist (born 1925)
- Leo SzilardHungarian-American physicist and inventor (1898–1964)
- Leon CooperAmerican physicist and neuroscientist (1930–2024)
- Leon GordisLeon Gordis (July 19, 1934 – September 7, 2015) was an American epidemiologist, professor
- Leon M. LedermanAmerican mathematician and physicist (1922–2018)
- Leona D. SamsonBiological engineer (born 1952)
- Leona WoodsAmerican nuclear physicist (1919–1986)
- Leonard KleinrockAmerican computer scientist (born 1934)
- Leonid KantorovichRussian mathematician (1912–1986)
- Leonora KingCanadian physician and medical missionary
- Leonore DavidoffAmerican historian and sociologist (1932–2014)
- Leopold KroneckerGerman mathematician (1823–1891)
- Lepaute (crater)Lepaute is a small lunar impact crater that is located along the western edge of the Palus
- Lepidophyma gaigeaeLepidophyma gaigeae, also known commonly as Gaige's tropical night lizard and la lagartija
- Leptospira noguchiiLeptospira noguchii is a gram-negative, pathogenic organism named for Japanese bacteriolog
- Lesley YellowleesBritish chemist (born 1953)
- Leslie ComrieLeslie John Comrie FRS (15 August 1893 – 11 December 1950) was an astronomer and a pioneer
- Leslie GrovesAmerican military officer (1896–1970)
- Leslie LamportAmerican computer scientist and mathematician (born 1941)
- Leta Stetter HollingworthAmerican psychologist (1886–1939)
- Lev LandauSoviet theoretical physicist (1908–1968)
- Lewis RyderLewis Howarth Ryder (15 November 1941 – 18 December 2018) was a British theoretical physic
- LhamoClassical theatre of Tibet
- Li ShizhenChinese physician and pharmacologist (1517–1593)
- Li WenliangChinese ophthalmologist (1985–2020)
- Lia AddadiIsraeli biochemist
- Liane RussellAmerican geneticist
- Libbie HymanAmerican zoologist
- Liebig MedalThe Liebig Medal (German: Liebig-Denkmünze) was established by the Association of German C
- Liesbet HoogheLiesbet Hooghe (born December 1, 1962, in Oudenaarde, Belgium) is a Belgian political scie
- Life peerAppointed member of the peerage of the United Kingdom whose title cannot be inherited
- Lila GieraschAmerican biochemist and biophysicist (born 1948)
- Lilienfeld PrizeAmerican annual physics award
- Lilly EndowmentLilly Endowment Inc., headquartered in Indianapolis, Indiana, is one of the world's larges
- Lily YoungProfessor of environmental microbiology
- Limeil-BrévannesLimeil-Brévannes (French pronunciation: ) is a commune in the southeastern suburbs of Pari
- Lin He (biologist)Chinese American biochemist
- Lina SternSoviet biochemist
- Linda B. BuckAmerican biologist
- Linda PetzoldAmerican mathematician
- Linda SaifAmerican microbial scientist
- Linda WalshBritish physicist (born 1958
- Line Lexington, PennsylvaniaLine Lexington is an unincorporated community located in the Delaware Valley on Route 309
- Linear complementarity problemIn mathematical optimization theory, the linear complementarity problem (LCP) arises frequ
- Linnean MedalAward to biologist from scientific society
- Liouville (crater)Liouville is a small lunar impact crater that is located near the eastern limb of the Moon
- Liquefaction of gasesLiquefaction of gases is physical conversion of a gas into a liquid state (condensation).
- Lisa BeroAmerican scientist (born 1958)
- Liu HuiChinese mathematician and writer
- Liuba ShriraComputer scientist
- Lixia ZhangProfessor of computer science
- Lloyd ShapleyAmerican mathematician (1923–2016)
- Lloyd Stowell ShapleyLloyd Stowell Shapley (November 3, 1875 – August 16, 1959) was a United States Navy Captai
- Lockney, TexasLockney is a town in Floyd County, Texas, United States. The population was 1,498 at the 2
- Logical effortThe method of logical effort, a term coined by Ivan Sutherland and Bob Sproull in 1991, is
- Lois H. TiffanyAmerican mycologist
- Lois HaibtAmerican computer scientist
- London Centre for NanotechnologyThe London Centre for Nanotechnology is a multidisciplinary research centre in physical an
- Longfin inshore squidThe longfin inshore squid (Doryteuthis pealeii) is a species of squid of the family Loligi
- Loránd EötvösHungarian physicist (1848–1919)
- LoránditeLorándite is a thallium arsenic sulfosalt with the chemical formula: TlAsS2. Though rare,
- Lord Lieutenant of the West Riding of YorkshireThis is a list of those who have held the position of Lord Lieutenant of the West Riding o
- Loredana MarcelloDogaress of Venice
- Lorentz MedalAward
- Lorenz OkenGerman naturalist (1779–1851)
- Lorraine HanlonAmerican figure skater
- Lotfi A. ZadehAzerbaijani scientist (1921–2017)
- Lotte LoeweGerman chemist (born 1900)
- Lotte StraussAmerican pathologist
- Louis BambergerLouis Bamberger (15 May 1855 – 11 March 1944) was a citizen of Newark, New Jersey, from th
- Louis Désiré Blanquart-EvrardFrench photographer (1802–1872)
- Louis Harold GrayEnglish physicist (1905–1965)
- Louis Le PrinceFrench motion-picture pioneer (1841–1890s)
- Louis LliboutryLouis Lliboutry (born 19 February 1922 in Madrid; died on 21 October 2007 in Grenoble) was
- Louis NéelFrench physicist (1904–2000)
- Louise BoursierFrench midwife (1563–1636)
- Louise du PierryFrench astronomer and professor (1746–1807)
- Louise JohnsonBritish biochemist and crystallographer 1940–2012
- Louise L. SloanLouise Littig Sloan (May 31, 1898 – March 1, 1982) was an American ophthalmologist and vis
- Louise PiëchLouise Hedwig Anna Wilhelmine Piëch (née Porsche; 29 August 1904, in Wiener Neustadt – 10
- Louise ReissAmerican physician (1920 – 2011)
- Lourdes J. CruzFilipino biochemist
- Lu Gwei-djenLu Gwei-djen (Chinese: 魯桂珍; pinyin: Lǔ Guìzhēn; Wade–Giles: Lu Kui-chen; July 22, 1904 – N
- Lu ShijiaChinese physicist
- Lubna TahtamouniJordanian biologist and cancer researcher
- Luc MontagnierFrench virologist and Nobel laureate (1932–2022)
- Lucie RandoinFrench biologist (1888–1960)
- Lucy Everest BooleBritish chemist and pharmacist (1862-1904)
- Lucy Moore (botanist)New Zealand botanist and ecologist (1906–1987)
- Lucy ShapiroAmerican developmental biologist
- Lucy WillsBritish physician and hematologist (1888-1964)
- Ludwig PrandtlGerman physicist (1875–1953)
- Ludwig Prandtl RingThe Ludwig Prandtl Ring is the highest award of the Deutsche Gesellschaft für Luft- und Ra
- Luis Federico LeloirArgentine physician and biochemist (1906–1987)
- Luis Walter AlvarezAmerican physicist, inventor and professor (1911–1988)
- LundCity in Scania, Sweden
- Lune of HippocratesIn geometry, the lune of Hippocrates, named after Hippocrates of Chios, is a lune bounded
- LunterenLunteren is a town in Gelderland, the Netherlands. It has a railway station on the line be
- Luther BurbankAmerican botanist and horticulturist (1849–1926)
- Lutherville, MarylandLutherville is a census-designated place (CDP) in Baltimore County, Maryland, United State
- Luz Oliveros-BelardoFilipina pharmaceutical chemist (1906–1999)
- LuzarchesLuzarches (French pronunciation: ) is a commune in the Val-d'Oise department in Île-de-Fra
- Lyapunov vectorIn applied mathematics and dynamical system theory, Lyapunov vectors, named after Aleksand
- Lycée Janson-de-Sailly48°51′55.28″N 2°16′47.60″E / 48.8653556°N 2.2798889°E
- Lycée La Fontaine (Paris)Lycée Jean-de-La-Fontaine is a lycée in the 16th arrondissement of Paris, France.
- Lydia KavrakiGreek computer scientist
- Lydia RobertsAmerican nutritionist
- Lydia Villa-KomaroffMexican American cellular biologist
- Lyman SpitzerAmerican astronomer (1914–1997)
- Lynda SoderholmAmerican physical chemist
- Lynette WilloughbyElectronic engineer
- Lynn ConwayAmerican computer scientist and electrical engineer (1938–2024)
- Lynn GladdenBritish chemical engineer
- Lynn MargulisAmerican evolutionary biologist (1938–2011)
- Lynne Kelly (science writer)Australian science writer
- Lynne TalleyAmerican oceanographer
- Lynx X-ray ObservatoryThe Lynx X-ray Observatory (Lynx) is a NASA-funded Large Mission Concept Study commissione