Physical and mathematical scientists

Ilona Stengel

Ilona Stengel is a chemist who researches materials for organic light-emitting diodes and has served as OLED Intellectual Property Liaison at Merck Electronics KGaA in Darmstadt since October 2023.

Ilya Lifshitz (Илья Михайлович Лифшиц, 1917–1982) was a Soviet theoretical physicist in condensed matter who led theory departments in Kharkov and Moscow and gave his name to the Lifshitz–Kosevich formula, Lifshitz tails, and the Lifshitz transition.

Ilya Piatetski-Shapiro

Ilya Piatetski-Shapiro (Илья Иосифович Пятецкий-Шапиро; 1929–2009) was a Soviet-born Israeli mathematician who co-founded the theory of automorphic representations, proved a 1953 prime number theorem for ⌊n^c⌋ sequences, and won the Israel Prize and Wolf Prize.

Ilya Prigogine

Ilya Prigogine, born Ilya Romanovich Prigogin in Moscow in 1917, was a Belgian physical chemist who won the 1977 Nobel Prize in Chemistry for his theory of dissipative structures.

Imke de Pater

Imke de Pater, born 1952, is a planetary scientist at UC Berkeley known for Jupiter's radio emission, the 1994 Shoemaker–Levy 9 campaign, and the textbook Planetary Sciences.

Sep 20, 2026

Immanuel Bloch

Immanuel Bloch (born 1972 in Fulda) is a German experimental physicist who leads quantum simulation with ultracold atoms at the Max Planck Institute of Quantum Optics.

In Jae Chung

In Chung is a South Korean solid-state materials chemist and professor at Seoul National University, known for all-solid-state dye-sensitized solar cells using CsSnI3 and for thermoelectric materials research.

In Su Lee

In Su Lee (이인수) is a South Korean materials chemist at POSTECH since 2011, known for silica nanoreactors controlling nanocrystal formation and for tiling silica onto living cells.

Inez Fung

Inez Y. Fung, born 1949, is a Hong Kong-born climate scientist who models the sources and sinks of atmospheric CO2 and dust, and professor emerita at UC Berkeley.

Oct 15, 2026

Inge Lehmann

Inge Lehmann was a Danish seismologist who in 1936 discovered that the Earth has a distinct inner core, and headed seismology at the Danish Geodetic Institute.

Sep 20, 2026

Ingo Krossing

Ingo Krossing is a German inorganic chemist, professor at the University of Freiburg since 2006, known for weakly coordinating anions and unified acidity and redox scales.

Ingrid Kogel-Knabner

Ingrid Kogel-Knabner, also written Ingrid Kögel-Knabner, is a German soil scientist and professor emeritus at the Technical University of Munich, elected to the US National Academy of Engineering in 2025.

Instituto de Tecnologia Quimica

The Instituto de Tecnología Química (ITQ) is a Spanish catalysis research center in Valencia, created in 1990 as a joint center of CSIC and the Universitat Politècnica de València.

Insung S. Choi

Insung S. Choi (최인성) is a South Korean chemist and KAIST professor working in biomimetic chemistry, known for founding single-cell nanoencapsulation of living cells in artificial shells.

Ioannis George Kevrekidis

Ioannis George Kevrekidis, known as Yannis Kevrekidis, is a Greek-born chemical engineer and applied mathematician at Johns Hopkins University, known for pioneering equation-free multiscale computation.

Ioannis Iliopoulos

Ioannis (John) Iliopoulos, born 1940 in Kalamata, Greece, is a Greek theoretical physicist who co-invented the GIM mechanism, which introduced the charm quark into weak-interaction theory.

Ioel Malkin

Ioel Malkin (Иоэль Малкин) was a Soviet mathematician who extended Lyapunov's second method with converse stability theorems, founded the Ural school of stability of motion, and taught Nikolay Krasovsky.

Iosif Shklovsky

Iosif Shklovsky (1916–1985) was a Soviet theoretical astrophysicist who explained the Crab Nebula's radiation as synchrotron emission and co-wrote Intelligent Life in the Universe with Carl Sagan.

Ira A. Weinstock

Ira A. Weinstock is an American-born inorganic chemist and full professor at Ben-Gurion University of the Negev, known for polyoxometalate cluster chemistry, green oxidation catalysis, and water oxidation research.

Ira B. Bernstein

Ira B. Bernstein was an American theoretical plasma physicist at Yale who discovered the Bernstein wave and was elected to the National Academy of Sciences in 1984.

Ira Remsen

Ira Remsen (1846–1927) was an American chemist who codiscovered saccharin in 1879, founded the chemistry department at Johns Hopkins University, and later served as its president from 1901 to 1913.

Ira S. Bowen

Ira S. Bowen was an American astrophysicist at Caltech who solved the nebulium mystery in 1927 and directed the Mount Wilson and Palomar Observatories from 1948 to 1964.

Irene A. Chen

Irene A. Chen is an American chemical biologist and professor at UCLA who studies the origin of life, protocells, and bacteriophages, known for her 2004 Science paper on competition between model protocells.

Irene Fischer

Irene Fischer was an Austrian-born American geodesist who fled Vienna in 1939, led the Army Map Service geoid branch, and created the Fischer 1960 ellipsoid used by NASA.

Irène Joliot-Curie

Irène Joliot-Curie, also Irène Curie, was a French physicist and chemist who discovered artificial radioactivity with her husband Frédéric Joliot, winning the 1935 Nobel Prize in Chemistry.

Irvin Cohen

Irvin Sol Cohen (1917–1955) was an American mathematician at MIT who worked in commutative algebra and is known for his 1946 structure theorem for complete local rings and the rings named after him, Cohen rings.

Irving Kaplansky

Irving Kaplansky (1917–2006) was a Canadian mathematician who made major contributions to ring theory, group theory, and operator algebras, spending most of his career at the University of Chicago.

Irving Langmuir

Irving Langmuir (1881–1957) was an American physical chemist who spent his career at General Electric in Schenectady and won the 1932 Nobel Prize in Chemistry for surface chemistry.

Irving Segal

Irving Segal (1918–1998) was an American mathematician and mathematical physicist, professor at MIT and a National Academy of Sciences member, known for the C-algebra, the GNS construction, and the controversial chronometric cosmology.