42,772 articles
Mordechai Segev
Mordechai (Moti) Segev is an Israeli physicist and distinguished professor at the Technion in Haifa, credited with founding topological photonics, Anderson localization of light, and photorefractive solitons.
Mordeckai Magaritz
Mordeckai Magaritz (1944–1993) was an Israeli isotope geochemist at the Weizmann Institute of Science in Rehovot, known for carbon-isotope studies of geological boundaries, Negev Desert palaeoclimate, and Israel's coastal aquifers.
Mordell–Weil theorem
The Mordell–Weil theorem states that the group of rational points of an abelian variety over a number field is finitely generated; Mordell proved the elliptic curve case in 1922.
Mordenite
Mordenite is a zeolite mineral whose MOR framework has unidimensional channels, occurring naturally in sedimentary volcanic rocks and made synthetically since 1948, used as an industrial acid catalyst and adsorbent.
Morenci mine
The Morenci mine is an open-pit copper and molybdenum mining complex in Greenlee County, southeastern Arizona, worked since the 1870s and now one of the world's largest open-pit copper mines, run by Freeport-McMoRan.
Morgan Crofton
Morgan Crofton, born in Dublin in 1826, was an Irish mathematician who founded the systematic theory of geometric probability and proved Crofton's formula, relating a curve's length to random line crossings.
Morgan W. Mitchell
Morgan W. Mitchell (born 1968) is an American physicist and ICREA Professor at the Institute of Photonic Sciences in Barcelona, known for quantum metrology beyond the standard quantum limit.
Morgen
The Morgen is a traditional German and Dutch unit of land area, originally the amount a farmer with a draft team could plow in a morning, with no fixed size.
Morikazu Toda
Morikazu Toda (盛和) was a Japanese physicist in statistical mechanics and condensed matter physics, born in 1917 and died in 2010, best known for discovering the Toda lattice, a model of completely integrable systems.
Morin (flavonol)
Morin is a plant flavonol found in old fustic, the heartwood of a Central and South American dye tree, now studied for antioxidant and anticancer activity.
Morita equivalence
Morita equivalence is an equivalence relation on rings, introduced by Kiiti Morita in 1958, holding when two rings have equivalent module categories, so module properties transfer; a ring and its matrix rings are equivalent.
Moritz Pasch
Moritz Pasch (1843–1930) was a German mathematician at Giessen whose 1882 Vorlesungen über neuere Geometrie founded modern axiomatic geometry and gave name to Pasch's axiom.
Morley Evans Wilson
Morley Evans Wilson (1881–1965) was a Canadian geologist who mapped Precambrian rocks and mineral deposits for the Geological Survey of Canada and later taught geology at Carleton University.
Morley rank
Morley rank is an ordinal-valued dimension assigned to definable sets in a model, introduced by Michael Morley in 1965; in algebraically closed fields it equals Zariski dimension.
Morning
Morning is the early part of the day, extending from dawn or sunrise to noon, or technically from midnight to midday; it is when human circadian physiology is most responsive to light.
Morning Star
The Morning Star is the planet Venus seen in the eastern sky before sunrise; the same planet appears as the Evening Star after sunset, alternating every 19 months.
Morphinan
Morphinan is a tetracyclic chemical scaffold, first recognized as the structural core of morphine, that underlies opioid analgesics like oxycodone, antagonists like naloxone, and the antitussive dextromethorphan.
Morphism
A morphism is an abstract arrow from one object of a category to another, with composition and identities, defined without reference to functions or sets.
Morphodynamics
Morphodynamics is the study of the mutual adjustment of topography and fluid dynamics involving sediment transport, a feedback loop that shapes shores, estuaries, riverbeds, and dunes.
Morphoelasticity
Morphoelasticity is the theory of growing elastic materials, a branch of continuum mechanics describing how growth generates deformation and stress, with the term coined by Alain Goriely.
Morpholine
Morpholine is a six-membered saturated heterocycle containing one nitrogen and one oxygen atom (formula C₄H₉NO), a colorless hygroscopic liquid made industrially for rubber chemicals, corrosion inhibitors, and drugs.
Morpholino (chemical group)
Morpholino, named morpholin-4-yl in current IUPAC nomenclature, is the univalent substituent group derived from morpholine, a saturated six-membered ring with one oxygen and one nitrogen atom.
Morphology–density relation
The morphology–density relation is the observed correlation between galaxy type and local galaxy density: ellipticals dominate dense regions, spirals low-density ones, first quantified by Alan Dressler in 1980.
Morphotropic phase boundary
A morphotropic phase boundary (MPB) is a region in a solid solution's phase diagram where two crystallographic phases of different symmetry coexist, and where electromechanical response is maximal.
Morrel H. Cohen
Morrel H. Cohen (born 1927) is an American condensed matter physicist known for the free-volume theory of the glass transition and a 1969 band model of amorphous semiconductors.
Morris Friedkin
Morris Friedkin was an American biochemist known for his work on folic acid metabolism, DNA synthesis, and cancer chemotherapy, elected to the National Academy of Sciences in 1978.
Morris Marden
Morris Marden (1905–1991) was an American mathematician who studied the geometry of polynomial zeros, wrote the monograph Geometry of Polynomials, and built the graduate program at the University of Wisconsin–Milwaukee.
Morris S. Kharasch
Morris S. Kharasch was an American organic chemist at the University of Chicago, best known for the peroxide effect, which established free radicals as reaction intermediates.
Morris Travers
Morris William Travers was an English chemist who co-discovered krypton, neon, and xenon with William Ramsay in 1898 and later directed the Indian Institute of Science.
Morris–Thorne wormhole
The Morris–Thorne wormhole is a traversable wormhole solution of general relativity, named for Michael Morris and Kip Thorne's 1988 paper, which requires exotic matter that violates the null energy condition.