Physical world and mathematics

Louis Antoine

Louis Antoine (Louis Auguste Antoine) was a French mathematician blinded in World War I whose 1921 thesis founded the study of wild embeddings and Antoine's necklace.

Louis B. Slichter

Louis B. Slichter was an American geophysicist at MIT and UCLA who pioneered the study of inverse problems, earth tides, and the earth's free oscillations.

Louis B. Werner

Louis B. Werner was an American chemist who co-isolated the first weighable amount of plutonium in 1942 at the Metallurgical Laboratory in Chicago, and the first pure compound of curium-242 in 1947.

Louis Camille Maillard

Louis Camille Maillard (1878–1936) was a French physician and chemist who described in 1912 the browning reaction between amino acids and reducing sugars that bears his name.

Louis de Branges de Bourcia

Louis de Branges de Bourcia (born 1932) is an American mathematician at Purdue University who proved the Bieberbach conjecture in 1984 and pursues the Riemann hypothesis.

Louis de Broglie

Louis-Victor de Broglie, 7th duc de Broglie, was a French theoretical physicist whose 1924 thesis proposed matter waves, confirmed in 1927 and earning the 1929 Nobel Prize in Physics.

Louis Antoine Marie Joseph Dollo (1857–1931) was a Belgian paleontologist who reconstructed the Bernissart Iguanodon skeletons, pioneered paleobiology, and formulated Dollo's Law of evolutionary irreversibility.

Sep 20, 2026

Louis E. Brus

Louis E. Brus, also known as Louis Brus, was an American physical chemist at Columbia University who shared the 2023 Nobel Prize in Chemistry for discovering quantum dots.

Oct 15, 2026

Louis Essen

Louis Essen (1908–1997) was a British physicist at the National Physical Laboratory who built the first practical caesium atomic clock in 1955, the basis of the modern SI second.

Louis Fieser

Louis Fieser (1899–1977) was an American organic chemist at Harvard who synthesized vitamin K1 in 1939, led the wartime team that developed napalm, and co-wrote the Reagents for Organic Synthesis series with his wife Mary.

Louis François de Pourtalès

Louis François de Pourtalès (1824–1880) was a Swiss-born American naturalist who pioneered deep-sea dredging on the US Coast Survey, showing animal life thrives at great depths.

Louis G. Henyey

Louis G. Henyey (1910–1970) was an American astrophysicist at the University of California, Berkeley, known for the Henyey–Greenstein scattering function and his 1959 method for automatic computation of stellar evolution.

Louis Georges Gouy

Louis Georges Gouy (1854–1926) was a French physicist, professor at Lyon, known for the Gouy balance, the Gouy phase, and the Gouy–Chapman electric double layer.

Louis Harold Gray

Louis Harold Gray (1905–1965) was a British physicist and radiobiologist who formulated the Bragg-Gray principle for measuring radiation dose; the SI unit, the gray, honors him.

Louis J. Mordell

Louis Joel Mordell was an American-born British number theorist who proved in 1922 that rational points on an elliptic curve form a finitely generated group, and conjectured the Mordell conjecture.

Louis Kauffman

Louis H. Kauffman, born 1945 in Potsdam, New York, is an American mathematician at the University of Illinois Chicago known for the Kauffman bracket polynomial and knot theory.

Louis Leprince-Ringuet

Louis Leprince-Ringuet (1901–2000) was a French physicist and essayist who led major cosmic-ray laboratories, coined "hyperon", and belonged to both the Académie des sciences and the Académie française.

Louis M Pecora

Louis M Pecora is an American physicist who, with Thomas Carroll, discovered a method for synchronizing chaotic systems in 1990 and was named a Clarivate Citation Laureate in 2020.

Louis Néel

Louis Eugène Félix Néel was a French physicist at Grenoble who described antiferromagnetism in 1932 and ferrimagnetism in 1947, winning the 1970 Nobel Prize in Physics.

Louis Nirenberg

Louis Nirenberg (1925–2020) was a Canadian-born American mathematician who spent his career at NYU's Courant Institute and shared the 2015 Abel Prize for work on nonlinear partial differential equations.

Louis Norberg Howard

Louis Norberg Howard (1929–2015) was an American applied mathematician at MIT and Florida State known for the Howard semicircle theorem and bounds on turbulent convection.

Louis Pasteur

Louis Pasteur (1822–1895) was a French chemist and microbiologist who established germ theory, molecular chirality, and attenuated vaccination, and developed the heat treatment called pasteurization.

Louis Paul Cailletet

Louis Paul Cailletet (1832–1913) was a French physicist and ironmaster's son who in 1877 first liquefied oxygen by sudden expansion, origin of the refrigeration and cryogenics industries.

Louis Plack Hammett

Louis Plack Hammett (1894–1987) was an American physical organic chemist at Columbia University, known for the Hammett equation and the acidity function for measuring superacids.

Louis Slotin

Louis Alexander Slotin (1910–1946) was a Canadian physicist at Los Alamos who assembled the first atomic bomb's core and died nine days after a criticality accident in 1946.

Louis Taillefer

Louis Taillefer (born 1959) is a Canadian experimental condensed-matter physicist known for work on unconventional superconductors, and a professor at the Université de Sherbrooke until 2025.

Louis V. Pirsson

Louis V. Pirsson was an American geologist and petrologist, professor at Yale's Sheffield Scientific School, and co-developer of the quantitative classification of igneous rocks published in 1902 and 1903.

Louis Winslow Austin

Louis Winslow Austin (1867–1932) was an American physicist who researched long-range radio transmission and, with Louis Cohen, derived the Austin–Cohen formula, heading a Navy radio laboratory at the National Bureau of Standards from 1908.

Louise Lear

Louise Lear is a British broadcast weather presenter who has presented BBC forecasts since 1998, appearing on BBC Breakfast, BBC News at Six, Radio 5 Live, and Countryfile.