Scientific phenomena named after people

This is a list of scientific phenomena and concepts named after people. For other lists of eponyms, see eponym.

A

Abderhalden–Fauser reaction – Emil Abderhalden and August Fauser
Abney effect – William de Wiveleslie Abney
Abrikosov lattice – Alexei Alexeyevich Abrikosov
Aharonov–Bohm effect – Yakir Aharonov and David Bohm
Alfvén wave – Hannes Olof Gösta Alfvén
Alhazen's problem – Alhazen
Allais effect – Maurice Allais
Allee effect – Warder Clyde Allee
Amdahl's law, a.k.a. Amdahl's argument – Gene Amdahl
Ampère's law – André-Marie Ampère
Anderson–Higgs mechanism – Peter Higgs and Philip Warren Anderson
Anderson–Darling test – Theodore Wilbur Anderson and Donald A. Darling
Andreev reflection – Alexander F. Andreev
Apgar score – Virginia Apgar
Arago spot – Dominique François Jean Arago
Michaelis–Arbuzov reaction – Aleksandr Erminingeldovich Arbuzov and August Karl Arnold Michaelis
Archimedean spiral, Archimedes number – Archimedes
Argand diagram – Jean Robert Argand
Aristotle's lantern – Aristotle
Armstrong limit or Armstrong's line – Harry George Armstrong
Armstrong oscillator – Edwin Armstrong
Arndt–Eistert synthesis – Fritz Arndt and Bernd Eistert
Arndt–Schulz law/principle/rule – Rudolf Arndt and Hugo Paul Friedrich Schulz
Arrhenius equation – Svante August Arrhenius
Ashkin–Teller model – Julius Ashkin and Edward Teller
Asinger reaction – Friedrich Asinger
Auger effect, electron – Pierre Victor Auger and Lise Meitner
Autler–Townes effect – Stanley H. Autler and Charles H. Townes
Auwers synthesis – Karl von Auwers
Avogadro's law, Avogadro constant, Avogadro number – Count Lorenzo Romano Amedeo Carlo Avogadro di Quaregna e Cerreto

B

Baeyer–Drewson indigo synthesis – Johann Friedrich Wilhelm Adolf von Baeyer and Viggo Drewsen
Baeyer–Villiger oxidation and Baeyer–Villiger rearrangement – Johann Friedrich Wilhelm Adolf von Baeyer and Victor Villiger
Babinet's principle – Jacques Babinet
Babler–Dauben oxidation – James Babler and William Garfield Dauben
Bagnold number – Ralph Alger Bagnold
Baily's beads – Francis Baily
Baker–Nathan effect – John William Baker and Wilfred S. Nathan
Bakerian mimicry – Herbert G. Baker
effect (astronomy)">Faraday effect">effect (astronomy) – Jack Allen Baldwin
Baldwin effect – James Mark Baldwin
Baldwin's rules – Jack Edward Baldwin
Balmer line, series – Johann Jakob Balmer
Bamberger rearrangement – Eugen Bamberger
Bamford–Stevens reaction – William Randall Bamford and Thomas Stevens Stevens
Barkhausen effect – Heinrich Barkhausen
Barnett effect – Samuel Jackson Barnett
Barnum effect – Phineas Taylor Barnum
Barton reaction – Derek Harold Richard Barton
Barton–McCombie deoxygenation – Derek Harold Richard Barton and Stuart W. McCombie
Baskerville effect – the fictional Charles Baskerville of the novel The Hound of the Baskervilles
Batesian mimicry – Henry Walter Bates
Bauschinger effect – Johann Bauschinger
Bayes's theorem – Thomas Bayes
Baylis–Hillman reaction – Anthony B. Baylis and Melville E. D. Hillman
Bayliss effect – William M. Bayliss
BCS superconduction theory – John Bardeen, Leon Cooper, and Robert Schrieffer
Beaufort scale – Francis Beaufort
Beckmann rearrangement – Ernst Otto Beckmann
Beer's law – August Beer
Beilstein's test – Friedrich Konrad Beilstein
Bejan number – Adrian Bejan
Bekenstein bound – Jacob Bekenstein
Bélády's anomaly – László Bélády
Bell's inequality – John Stewart Bell
Bell number – Eric Temple Bell
Belousov–Zhabotinskii reaction – Boris Pavlovich Belousov and Anatol Markovich Zhabotinskii
Bénard cell – Henri Bénard
Bénard–Marangoni cell/convection – Henri Bénard and Carlo Marangoni
Benedict's test – Stanley Rossiter Benedict
Benford's law – Frank Albert Benford, Jr.
Benioff zone – see Wadati–Benioff zone, below
Bennett pinch – Willard Harrison Bennett
Berezinsky–Kosterlitz–Thouless transition – Veniamin L. Berezinsky, John M. Kosterlitz, and David J. Thouless
Bergman cyclization – Robert George Bergman
Bergmann's rule – Carl Bergmann (anatomist)
Bergmann–Zervas carbobenzoxy method – Max Bergmann and Leonidas Zervas
Bernoulli effect, Bernoulli's equation, principle – Daniel Bernoulli
Berry's phase – Michael V. Berry
Betz limit – Albert Betz
Bezold–Brücke shift – Johann Friedrich Wilhelm von Bezold and Ernst Wilhelm von Brücke
Biefeld–Brown effect – Paul Alfred Biefeld and Thomas Townsend Brown
Biginelli reaction – Pietro Biginelli
Biot number – Jean-Baptiste Biot
Biot–Savart law – Jean-Baptiste Biot and Félix Savart
Birch reduction – Arthur John Birch
Birkeland currents – Kristian Birkeland
Bischler–Napieralski reaction – August Bischler and Bernard Napieralski
Black's equation for electromigration – James R. Black of Motorola
Blandford–Znajek process – Roger D. Blandford and Roman L. Znajek
Blasius boundary layer, flow – Paul Richard Heinrich Blasius
Blazhko effect – Sergey Blazhko
Bloch electrons – Felix Bloch
Bloom filter – Burton Howard Bloom
Bodenstein number – Max Bodenstein
Bohm sheath criterion – David Bohm
Bohr effect – Christian Bohr
Bohr magneton, model, radius – Niels Bohr
Boltzmann constant – Ludwig Boltzmann
Bonnor–Ebert mass – William Bowen Bonnor and Rolf Ebert
Borel algebra, measure, set, space, summation, Borel's lemma, paradox – Émile Borel
Borel–Cantelli lemma – Émile Borel and Francesco Paolo Cantelli
Borel–Carathéodory theorem – Émile Borel and Constantin Carathéodory
Born–Haber cycle – Max Born and Fritz Haber
Born–Oppenheimer approximation – Max Born and Robert Oppenheimer
Borodin–Hunsdiecker reaction – Alexander Borodin, Hienz Hunsdiecker, and Clare Hunsdiecker
Borrmann effect – Gerhard Borrman
Bortle scale – John E. Bortle
Bose–Einstein condensate, effect, statistics – Satyendra Nath Bose and Albert Einstein
Boson – Satyendra Nath Bose
Boyer's law – Carl Benjamin Boyer
Boyle's law – Robert Boyle
Brackett line/series – Frederick Sumner Brackett
Bradford's law – Samuel C. Bradford
Braess's paradox – Dietrich Braess
Bragg angle, Bragg's law, Bragg plane – William Henry Bragg and his son William Lawrence Bragg
Bragg diffraction – William Lawrence Bragg
Brans–Dicke theory – Carl H. Brans and Robert H. Dicke
Bravais lattice – Auguste Bravais
Bravais–Miller indices – Auguste Bravais and William Hallowes Miller
Brayton cycle – George B. Brayton
Bredt's rule – Julius Bredt
Breit–Wheeler process – Gregory Breit and John A. Wheeler
Brewster's angle, law – David Brewster
Brillouin zone – Léon Brillouin
Brinkman number – Hendrik C. Brinkman
Brook rearrangement – Adrian Gibbs Brook
Brooks's law – Frederick Phillips Brooks, Jr.
Brownian motion & Brown(ian) noise – Robert Brown
Bucherer reaction – Hans Theodor Bucherer
Büchi automata – Julius Richard Büchi
Buckingham π theorem – Edgar Buckingham
Burali-Forti paradox – Cesare Burali-Forti
Bürgi–Dunitz angle – Hans-Beat Bürgi and Jack David Dunitz

C

Cabannes–Daure effect – Jean Cabannes and Pierre Daure
Cadiot–Chodkiewicz coupling, reaction – Paul Cadiot and Wladyslav Chodkiewicz
Callendar effect – Guy Stewart Callendar
Callippic cycle – Callippus of Cyzicus
Calvin cycle – Melvin Calvin
Cannizzaro reaction – Stanislao Cannizzaro
Cardan angles – Gerolamo Cardano
Carnot cycle, number – Nicolas Léonard Sadi Carnot
Carpenter effect – William Benjamin Carpenter
Cartan–Kähler theorem – Élie Cartan, Erich Kähler
Casimir effect – Hendrik Casimir
Catalan's conjecture, Catalan numbers – Eugène Charles Catalan
Cauchy number – Augustin-Louis Cauchy
Cauchy–Kovalevskaya theorem – Augustin-Louis Cauchy, Sofia Kovalevskaya
Cauer filter – Wilhelm Cauer
Chandler wobble – Seth Carlo Chandler
Chandrasekhar limit, number – Subrahmanyan Chandrasekhar
Chang–Refsdal lens – Kyongae Chang and Sjur Refsdal
Chaplygin gas – Sergey Alexeyevich Chaplygin
Charles's law – Jacques Charles
Chebyshev distance, equation, filter, linkage, polynomials – Pafnuty Chebyshev
Chebyshev's inequality – Pafnuty Chebyshev
Cherenkov radiation – Pavel Alekseyevich Cherenkov
Chichibabin reaction – Alexei Yevgenievich Chichibabin
Christiansen effect – Christian Christiansen
Christoffel symbol – Elwin Bruno Christoffel
Christofilos effect – Nicholas Christofilos
Chugaev elimination/reaction, reagent – Lev Aleksandrovich Chugaev
Chwolson ring or Chwolson–Einstein ring – Orest Khvolson
Clairaut's relation, theorem – Alexis Claude Clairaut
Claisen condensation, rearrangement – Rainer Ludwig Claisen
Claisen–Schmidt condensation – Rainer Ludwig Claisen and J. Gustav Schmidt
Clapp oscillator – James K. Clapp
Clarke orbit – Arthur C. Clarke
Clemmensen reduction – Erik Christian Clemmensen
Coanda effect – Henri Coanda
Coase theorem – Ronald Coase
Colburn–Chilton analogy – Allan Philip Colburn and Thomas H. Chilton
Coleman–Liau index – Meri Coleman and T. L. Liau
Coleman–Mandula theorem – Sidney Coleman and Jeffrey Mandula
Collatz conjecture, Kakutani's problem, the Thwaites conjecture, Hasse's algorithm – Lothar Collatz
Colpitts oscillator – Edwin H. Colpitts
Compton effect, scattering, wavelength – Arthur Compton
Compton–Getting effect – Arthur Compton and Ivan A. Getting
Conway's base 13 function – John H. Conway
Coolidge effect – from a joke attributed to John Calvin Coolidge, Jr.
Cooper pair – Leon Cooper
Cope elimination, rearrangement – Arthur Clay Cope
Corey–Fuchs reaction – Elias James Corey and Philip L. Fuchs
Corey–Kim oxidation – Elias James Corey and Choung Un Kim
Corey–Winter olefin synthesis – Elias James Corey and Roland Arthur Edwin Winter
Coriolis effect – Gaspard-Gustave Coriolis
Cotton effect – Aimé Auguste Cotton
Cotton–Mouton effect – Aimé Auguste Cotton and Henri Mouton
Coulomb's law – Charles Augustin de Coulomb
Coulter counter, principle – Wallace Henry Coulter
Coxeter–Dynkin diagram – Harold Scott MacDonald Coxeter and Eugene Borisovich Dynkin
Crabtree effect – Herbert Grace Crabtree
Criegee reaction, rearrangement – Rudolf Criegee
Curie point – Pierre Curie
Curry's paradox – Haskell Curry
Curtin–Hammett principle – David Yarrow Curtin and Louis Plack Hammett
Curtius rearrangement – Theodor Curtius

D

Dakin reaction – Henry Drysdale Dakin
Dakin–West reaction – Henry Drysdale Dakin and Randolph West
Dalton's law – John Dalton
Damerau–Levenshtein distance – Frederick J. Damerau and Vladimir Levenshtein
Darboux function – Jean Gaston Darboux
Darcy's law – Henry Darcy
Darlington pair – Sidney Darlington
Darwin drift – Charles Galton Darwin
Darwin point, Darwinism – Charles Darwin
Darzens condensation – Auguste Georges Darzens
Davies–Bouldin index – David L. Davies and Donald W. Bouldin
de Broglie wavelength – Louis de Broglie
de Bruijn sequences – Nicolaas Govert de Bruijn
de Haas–van Alphen effect – Wander Johannes de Haas and Pieter M. van Alphen
de Haas–Shubnikov effect – see Shubnikov–de Haas effect, below
Deborah number – the prophetess Deborah
Debye model – Peter Joseph William Debye
Debye–Falkenhagen effect – Peter Joseph William Debye and Hans Falkenhagen
Richard Dedekind has many topics named after him; see biography article.
Delbrück scattering – Max Ludwig Henning Delbrück
Delépine reaction – Stéphane Marcel Delépine
Dellinger effect – John Howard Dellinger
Demjanov rearrangement – Nikolai Jakovlevich Demjanov
Dermott's law – Stanley Dermott
Dess–Martin oxidation – Daniel Benjamin Dess and James Cullen Martin
DeVries solar cycle – See Suess solar cycle, below
Dice's coefficient – Lee Raymond Dice
Dieckmann condensation – Walter Dieckmann
Diels–Alder reaction – Otto Paul Hermann Diels and Kurt Alder
Diophantine equation – Diophantus of Alexandria
Dirac comb, fermion, spinor, equation, delta function, measure – Paul Dirac
Peter Gustav Lejeune Dirichlet has dozens of formulas named after him, see List of things named after Peter Gustav Lejeune Dirichlet
Divisia index – François Divisia
Doebner–Miller reaction – Oscar Döbner and Wilhelm von Miller
Dollo's law – Louis Dollo
Donnan effect – see Gibbs–Donnan effect, below
Doppler effect, Doppler profile – Christian Doppler
Downs–Thomson paradox – Anthony Downs and John Michael Thomson
Drake equation – Frank Drake
Droste effect – Dutch chocolate maker Droste
Drude model – Paul Drude
Duff's device – Tom Duff
Duffing equation, map – Georg Duffing
Duhamel's integral, and principle – Jean-Marie Constant Duhamel
Dulong–Petit law – Pierre Louis Dulong and Alexis Thérèse Petit
Dunitz angle – see Bürgi–Dunitz angle, above
Dunning–Kruger effect – David Dunning and Justin Kruger
Dyson–Harrop satellite – Brooks L. Harrop and Freeman Dyson

E

Early effect – James M. Early
Eddington limit – Arthur Eddington
Edgeworth–Bowley box – Francis Ysidro Edgeworth and Arthur Lyon Bowley
Edison effect – Thomas Edison
Edman degradation – Pehr Victor Edman
Edward–Lemieux effect – John Thomas Edward and Raymond U. Lemieux
Eglinton reaction – Geoffrey Eglinton
Ehrenfest paradox – Paul Ehrenfest
Eimer's organ – Gustav Heinrich Theodor Eimer
Einstein Cross, effect, radius, ring, shift – Albert Einstein
Einstein–Chwolson ring or Chwolson ring – Albert Einstein and Orest Khvolson
Einstein–de Haas effect – Albert Einstein and Wander Johannes de Haas
Einstein–Podolsky–Rosen paradox – Albert Einstein, Boris Podolsky, Nathan Rosen
Ekman layer – Walfrid Ekman
Elbs reaction – Karl Elbs
Elliott–Halberstam conjecture – Peter D. T. A. Elliott and Heini Halberstam
Elman network – Jeff Elman
Elsasser number – Walter M. Elsasser
Engel curve – Ernst Engel
Engelbart's law – Douglas Engelbart
Epimenides paradox – Epimenides of Knossos
Erlenmeyer flask, rule, synthesis – Richard August Carl Emil Erlenmeyer
Eschenmoser fragmentation – Albert Eschenmoser
Eschweiler–Clarke reaction – Wilhelm Eschweiler and Hans Thacher Clarke
Eshelby's inclusion – John D. Eshelby
Étard reaction – Alexandre Léon Étard
Ettingshausen effect – Albert von Ettingshausen
Euler this and that (numerous entries) – Leonhard Euler
Evershed effect – John Evershed

F

Faà di Bruno's formula – Francesco Faà di Bruno
Faraday constant, effect, law of induction">Paschen's law">law of induction, Faraday's law of electrolysis – Michael Faraday
Farnsworth–Hirsch fusor – Philo T. Farnsworth and Robert L. Hirsch
Favorskii reaction, rearrangement – Alexei Yevgrafovich Favorskii
Fenton reaction – Henry John Horstman Fenton
Fermat's principle – Pierre de Fermat
Fermi energy, paradox, surface, Fermion – Enrico Fermi
Fermi–Dirac statistics – Enrico Fermi and Paul Dirac
Ferrel cell – William Ferrel
Ferrers diagram – Norman Macleod Ferrers
Feshbach resonance – Herman Feshbach
Feynman diagram – Richard Feynman
Finkelstein reaction – Hans Finkelstein
Fischer esterification, indole synthesis – Emil Hermann Fischer
Fischer–Hafner reaction – Ernst Otto Fischer and Walter Hafner
Fischer–Tropsch process – Franz Joseph Emil Fischer and Hans Tropsch
Fischer–Hepp rearrangement – Otto Philipp Fischer and Eduard Hepp
Fisher distribution – Ronald A. Fisher
Fisher equation – Irving Fisher
Fisher–Widom line – Michael E. Fisher and Benjamin Widom
Fitts's law – Paul M. Fitts
Flesch–Kincaid readability test – Rudolf F. Flesch and J. Peter Kincaid
Fletcher–Munson curves – Harvey Fletcher and Wilden A. Munson
Flynn effect – Jim Flynn
Föppl–von Kármán equations – August Föppl and Theodore von Kármán
Forbush effect – Scott Ellsworth Forbush
Forer effect – Bertram R. Forer
Foucault pendulum – Jean Bernard Léon Foucault
Fourier number – Joseph Fourier
Fourier series – Joseph Fourier
Fourier–Motzkin elimination – Joseph Fourier and Theodore Motzkin
Franck–Condon principle – James Franck and Edward Uhler Condon
Franssen effect – Nico Franssen
Franz–Keldysh effect – Walter Franz and Leonid V. Keldysh
Fraunhofer diffraction, lines – Joseph von Fraunhofer
Freeman law – Ken Freeman
Frenkel line – Jacov Frenkel
Fresnel zone – Augustin Fresnel
Frey effect – Allan H. Frey
Friedel oscillations – Jacques Friedel
Friedel–Crafts reaction – Charles Friedel and James Mason Crafts
Friedländer synthesis – Paul Friedländer
Friedmann–Lemaître–Robertson–Walker metric – Alexander Friedmann, Georges Lemaître, Howard P. Robertson and Arthur Geoffrey Walker
Fries and photo-Fries rearrangement – Karl Theophil Fries
Fritsch–Buttenberg–Wiechell rearrangement – Paul Ernst Moritz Fritsch, Wilhelm Paul Buttenberg, and Heinrich G. Wiechell
Frobenius algebra, automorphism, method, norm, theorem – Ferdinand Georg Frobenius
Froude number – William Froude
Fry readability formula – Edward Fry
Fujita scale – Tetsuya Theodore Fujita
Fujiwhara effect – Sakuhei Fujiwhara

G

Gabriel synthesis – Siegmund Gabriel
Gardner transition – Elizabeth Gardner
Garman limit – Elspeth Garman
Gattermann reaction – Ludwig Gattermann
Gattermann–Koch reaction – Ludwig Gattermann and Julius Arnold Koch
Gaunt factor – John Arthur Gaunt
Gause's principle – Georgii Gause
Gauss's law – Carl Friedrich Gauss
Gauss–Bonnet gravity, theorem – Carl Friedrich Gauss and Pierre Ossian Bonnet
Geib–Spevack process – Karl-Hermann Geib and Jerome S. Spevack
Geiger counter – Johannes Wilhelm (Hans) Geiger
Geiger–Marsden experiment – Johannes Wilhelm (Hans) Geiger and Ernest Marsden
Geiger–Müller tube – Johannes Wilhelm (Hans) Geiger and Walther Müller
Geiger–Nuttall law/rule – Johannes Wilhelm (Hans) Geiger and John Mitchell Nuttall
Geissler tube – Heinrich Geissler
Gibbs entropy, free energy, paradox, Gibbs's phase rule, Gibbs phenomenon – Josiah Willard Gibbs
Gibbs–Donnan effect – Josiah Willard Gibbs and Frederick G. Donnan
Gibbs–Marangoni effect – Josiah Willard Gibbs and Carlo Marangoni
Gibbs–Helmholtz equation – Josiah Willard Gibbs and Hermann von Helmholtz
Gibbs–Thomson effect – Josiah Willard Gibbs and three Thomsons: James Thomson, William Thomson, 1st Baron Kelvin, Joseph John "J. J." Thomson
Giffen good – Robert Giffen
Gleissberg solar cycle – Wolfgang Gleißberg
Gloger's rule – Constantin Wilhelm Lambert Gloger
Goldbach's conjecture – Christian Goldbach
Goldstone boson – see Nambu–Goldstone boson, below
Gomberg–Bachmann reaction – Moses Gomberg and Werner Emmanuel Bachmann
Goodhart's law – Charles Goodhart
Goos–Hänchen effect or shift – Fritz Goos and Hilda Hänchen
Gould Belt – Benjamin Gould
Grashof number – Franz Grashof
Greisen–Zatsepin–Kuzmin cut-off/limit – Kenneth Greisen, Georgiy Zatsepin and Vadim Kuzmin
Gresham's law – Thomas Gresham
Griess test – Johann Peter Griess
Grignard reaction – François Auguste Victor Grignard
Grob fragmentation – Cyril A. Grob
Gromov–Witten invariant – Mikhail Gromov and Edward Witten
Grosch's law – Herbert Reuben John Grosch
Grotrian diagram – Walter Robert Wilhelm Grotrian
Grotthuss chain – Christian Johann Dietrich Theodor von Grotthuss
Grotthuss–Draper law – Christian Johann Dietrich Theodor von Grotthuss and John William Draper
Gunn diode, effect – John Battiscombe "J. B." Gunn
Gunning fog index – Robert Gunning
Gustafson's law, a.k.a. Gustafson–Barsis's law – John L. Gustafson
Gutenberg–Richter law – Beno Gutenberg and Charles Francis Richter

H

Haar measure – Alfréd Haar
Hadamard inequality – Jacques Solomon Hadamard
Hadamard transform – Jacques Hadamard, Hans Rademacher, and Joseph L. Walsh
Hadley cell – George Hadley
Hagedorn temperature – Rolf Hagedorn
Haitz's law – Roland Haitz
Haldane effect – John Scott Haldane
Haldane's principle – John Burdon Sanderson Haldane
Hale solar cycle – George Ellery Hale
Hall effect – Edwin Hall
Hamilton's rule – William Donald "Bill" Hamilton
Hamming code, Hamming distance, Hamming weight – Richard Hamming
Hammond postulate – George Simms Hammond
Hanle effect – Wilhelm Hanle
Hardy notation, space – Godfrey Harold Hardy
Hardy–Littlewood circle method, first conjecture – Godfrey Harold Hardy and John E. Littlewood
Hardy–Weinberg principle – Wilhelm Weinberg and Godfrey Harold Hardy
Harrod–Johnson diagram – Roy F. Harrod and Harry G. Johnson
Hartley oscillator – Ralph Hartley
Hartman effect – Thomas E. Hartman
Hartmann mask – Johannes Hartmann
Hartree energy – Douglas Hartree
Hasse's algorithm – see Collatz conjecture, above
Hasse diagram, principle – Helmut Hasse
Hasse–Minkowski theorem – Helmut Hasse and Hermann Minkowski
Hausdorff dimension – Felix Hausdorff
Hawthorne effect – from the Hawthorne Works factory
Hayashi track – Chushiro Hayashi
Hayflick limit – Leonard Hayflick
Hawking radiation – Stephen Hawking
Heaps's law – Harold Stanley Heaps
Heaviside layer – see Kennelly–Heaviside layer
Hebbian learning – Donald Olding Hebb
Heine–Borel theorem – Heinrich Eduard Heine and Émile Borel
Heinlein's razor – see Hanlon's razor, above
Heisenberg uncertainty principle – Werner Heisenberg
Hellmann–Feynman theorem – Hans Hellmann and Richard Feynman
Helmholtz free energy, Helmholtz resonance – Hermann von Helmholtz
Hénon map – Michel Hénon
Hénon–Heiles system, potential – Michel Hénon and Carl E. Heiles
Henrietta's law – see Leavitt's law, below
Henyey track – Louis G. Henyey
Herbig Ae/Be star – George Herbig
Herbig–Haro object – George Herbig and Guillermo Haro
Herbrand base, interpretation, structure, universe, and Herbrand's theorem – Jacques Herbrand
Hertz effect – Heinrich Rudolf Hertz
Hertzsprung–Russell diagram – Ejnar Hertzsprung and Henry Norris Russell
Hess afterimage – Carl von Hess
Hess diagram – R. Hess
Heusler alloy – Fritz Heusler
Heyting algebra, arithmetic – Arend Heyting
Hick's law, a.k.a. Hick–Hyman law – William Edmund Hick and Ray Hyman
Higgs boson, field – Peter Higgs
Higgs mechanism – see Anderson–Higgs mechanism, above
Hilbert–Waring theorem – David Hilbert and Edward Waring
Hill sphere – George William Hill
Hills cloud – Jack G. Hills
Hipparchic cycle – Hipparchus of Nicaea
Hirayama family – Kiyotsugu Hirayama
Hirsch–Meeks fusor – Robert L. Hirsch and Gene A. Meeks
Hofstadter's butterfly, law – Douglas Hofstadter
Hopfield dielectric – John J. Hopfield
Hopfield network – John J. Hopfield
Hořava–Lifshitz gravity – Petr Hořava and Evgeny Lifshitz
Hořava–Witten domain wall – Petr Hořava and Edward Witten
Hubbert peak – Marion King Hubbert
Hubble constant, expansion – Edwin Hubble
Hubble–Reynolds law – Edwin Hubble and John Henry Reynolds
Huchra's Lens – John Huchra
Humphreys line/series – Curtis J. Humphreys
Hund's Rules – Friedrich Hund
Hunsdiecker reaction – Heinz Hunsdiecker and Cläre Hunsdiecker
Huygens–Fresnel principle – Christiaan Huygens and Augustin-Jean Fresnel

I

Imbert–Fedorov effect – Christian Imbert and Fedor Ivanovič Fedorov
Ishikawa diagram – Kaoru Ishikawa
Ising model – Ernst Ising

J

Jaccard index, similarity coefficient, distance – Paul Jaccard
Jaffe profile – Walter Jaffe
Jahn–Teller effect – Hermann Arthur Jahn and Edward Teller
Jaro–Winkler distance – Matthew A. Jaro and William E. Winkler
Jarque–Bera test – Carlos M. Jarque and Anil K. Bera
Jeans's theorem – James Hopwood Jeans
Johnson–Nyquist noise – John B. Johnson and Harry Nyquist
Jordan's rule/law – David Starr Jordan
Josephson constant, effect, junction – Brian David Josephson
Joule's law – James Prescott Joule and Heinrich Friedrich Emil Lenz
Joule–Thomson effect – James Prescott Joule and William Thomson, 1st Baron Kelvin

K

K3 surface – Ernst Kummer, Erich Kähler, Kunihiko Kodaira
Kähler differential, manifold, metric – Erich Kähler
Kakutani's problem – see Collatz conjecture, above
Kármán vortex street – Theodore von Kármán
Karnaugh map – Maurice Karnaugh
Karush–Kuhn–Tucker conditions – William Karush, Harold W. Kuhn and Albert W. Tucker
Kasha's rule – Michael Kasha
Kater's pendulum – Captain Henry Kater
Kaye effect – Alan Kaye
Keeling curve – Charles David Keeling
Kelvin wave – William Thomson, 1st Baron Kelvin
Kelvin–Helmholtz mechanism, instability – William Thomson, 1st Baron Kelvin and Hermann von Helmholtz
Kelvin–Joule effect – William Thomson, 1st Baron Kelvin and James Prescott Joule
Kelvin–Voigt material, model – Woldemar Voigt and William Thomson, 1st Baron Kelvin
Kennelly–Heaviside layer – Arthur Edwin Kennelly and Oliver Heaviside
Kennicutt–Schmidt law – Maarten Schmidt and Robert Kennicutt
Kepler's laws of planetary motion – Johannes Kepler
Kerr effect – John Kerr
Kirkendall effect – Ernest Kirkendall
Kleene star – Stephen Kleene
Klein–Gordon equation – Oskar Klein and Walter Gordon
Klein–Nishina effect – Oskar Klein and Yoshio Nishina
Knudsen cell, number – Martin Hans Christian Knudsen
Kodaira dimension, embedding theorem, vanishing theorem – Kunihiko Kodaira
Koenigs–Knorr reaction – Wilhelm Koenigs and Edward Knorr
Kohn effect – Walter Kohn
Kohn–Sham equations – Walter Kohn and Lu Jeu Sham
Kohonen network – Teuvo Kohonen
Kolakoski sequence – William Kolakoski
Kolbe electrolysis – Adolph Wilhelm Hermann Kolbe
Kolbe–Schmitt reaction – Adolph Wilhelm Hermann Kolbe and Rudolf Schmitt
Kondo effect – Jun Kondo
Kornblum oxidation – Nathan Kornblum
Kornblum–DeLaMare rearrangement – Nathan Kornblum and Harold E. DeLaMare
Kossel effect – Walther Kossel
Kosterlitz–Thouless transition – see Berezinsky–Kosterlitz–Thouless transition, above
Kozai effect – Yoshihide Kozai
Krebs cycle – Hans Adolf Krebs
Kratzer potential – Adolf Kratzer
Kronecker delta – Leopold Kronecker
Kuhn–Tucker conditions – see Karush–Kuhn–Tucker conditions, above
Kuiper belt – Gerard Kuiper
Kummer's function, Kummer surface – Ernst Kummer
Kuramoto model – Yoshiki Kuramoto

L

Lagrangian mechanics, Lagrange points – Joseph-Louis Lagrange
Lamb shift – Willis Lamb
Lambert's cosine law – Johann Heinrich Lambert
Landau damping, pole – Lev Davidovich Landau
Landau–Pomeranchuk–Migdal effect – Lev Davidovich Landau, Isaak Pomeranchuk, and Arkady Migdal
Landau–Zener transition – Lev Davidovich Landau and Clarence Zener
Landé g-factor – Alfred Landé
Langmuir probe – Irving Langmuir
Langmuir–Blodgett film – Irving Langmuir and Katharine B. Blodgett
Laplace vector – see Laplace–Runge–Lenz vector, below
Laplace–Runge–Lenz vector – Pierre-Simon de Laplace, Carl Runge and Wilhelm Lenz
Larmor frequency, precession, radius – Joseph Larmor
Larsen effect – Søren Absalon Larsen
Laspeyres index – Ernst Louis Etienne Laspeyres
Leavitt's law – Henrietta Swan Leavitt
Le Chatelier's principle – Henri Louis Le Chatelier
Lee distance – C. Y. Lee
Leidenfrost effect, point – Johann Gottlob Leidenfrost
Lenard effect – Philipp Eduard Anton von Lenard
Lennard-Jones potential – John Lennard-Jones
Lense–Thirring effect – Josef Lense and Hans Thirring
Lenz vector – see Laplace–Runge–Lenz vector, above
Lenz's law – Heinrich Friedrich Emil Lenz
Leonard–Merritt mass estimator – Peter Leonard and David Merritt
Levenshtein distance, automaton – Vladimir Levenshtein
Levi-Civita symbol – Tullio Levi-Civita
Lewis–Mogridge Position – David Lewis and Martin J. H. Mogridge
Little–Parks effect – and Roland D. Parks
Littlewood–Offord problem – John E. Littlewood and A. Cyril Offord
Locard's exchange principle – Edmond Locard
Lode angle, Lode coordinates – Walter Lode
Lombard effect – Étienne Lombard
London force – Fritz London
Lorentz force, transformation – Hendrik Antoon Lorentz
Lorentz–Lorenz equation – Hendrik Antoon Lorentz and Ludvig Lorenz
Lorenz attractor – Edward Norton Lorenz
Lorenz curve – Max O. Lorenz
Lorenz gauge condition – Ludvig Lorenz
Lorenz–Mie scattering – see Mie scattering, below
Loschmidt's paradox – Johann Josef Loschmidt
Lotka's law – Alfred J. Lotka
Lotka–Volterra equation – Alfred J. Lotka and Vito Volterra
Love waves – Augustus Edward Hough Love
Lucas critique – Robert Lucas, Jr.
Lyapunov's central limit theorem, equation, exponent, fractal, function, stability, test, time and tube – Aleksandr Mikhailovich Lyapunov
Lyman line, series – Theodore Lyman

M

Mach band/effect, number, principle – Ernst Mach
Mach–Zehnder interferometer – Ludwig Mach and Ludwig Zehnder
Madelung constant, rule, energy – Erwin Madelung
Maggi–Righi–Leduc effect – Gian Antonio Maggi, Augusto Righi and Sylvestre Anatole Leduc
Magnus effect – Heinrich Gustav Magnus
Magorrian relation – John Magorrian
Mahalanobis distance – Prasanta Chandra Mahalanobis
Mahler measure, Mahler's theorem – Kurt Mahler
Maillard reaction
Malmquist bias, effect – Karl Gunnar Malmquist
Malus's law – Étienne-Louis Malus
Malthusian parameter – named by Ronald Fisher as a criticism of Thomas Robert Malthus
Malthusian catastrophe, growth model – Thomas Robert Malthus
Marangoni cell/convection – see Bénard–Marangoni cell/convection, above
Marangoni effect – see Gibbs–Marangoni effect, above
Markov's inequality, chain, partition, Markovian process – Andrey Markov
Mathieu functions – Émile Léonard Mathieu
Matilda effect – Matilda Joslyn Gage
Matthew effect – Matthew the Evangelist
Maxwell–Boltzmann distribution – James Clerk Maxwell and Ludwig Boltzmann
McCollough effect – Celeste McCollough
McCulloch–Pitts neuron – Warren McCulloch and Walter Pitts
McGurk effect – Harry McGurk
Mealy machine – George H. Mealy
Meissner effect – Walther Meissner
Mendelian inheritance – Gregor Mendel
Menzerath's law – Paul Menzerath
Mercalli intensity scale – Giuseppe Mercalli
Metonic cycle – Meton of Athens
Meyers synthesis – Albert I. Meyers
Mie scattering – Gustav Mie
Mihăilescu's theorem – Preda Mihăilescu
Mikheyev–Smirnov–Wolfenstein effect – Stanislav Mikheyev, Alexei Smirnov, and Lincoln Wolfenstein
Miller effect – John Milton Miller
Miller indices – William Hallowes Miller
Misnay–Schardin effect – Col. József Misnay and Hubert Schardin
Mögel–Dellinger effect – see Dellinger effect, above
Mohorovičić discontinuity – Andrija Mohorovičić
Mohr's circle – Christian Otto Mohr
Mohr–Coulomb theory – Christian Otto Mohr and Charles-Augustin de Coulomb
Mooers's law – Calvin Mooers
Moore machine – Edward Forrest Moore
Moore's law – Gordon E. Moore
Morgan unit – Thomas Hunt Morgan
Moreton wave – Gail E. Moreton
Morse potential – Philip M. Morse
Moses effect – after biblical Moses
Mössbauer effect – Rudolf Mössbauer
Mott cross section, Mott insulator, Mott transition – Nevill Francis Mott
Mpemba effect – Erasto B. Mpemba
Müllerian mimicry – Fritz Müller
Munroe effect – Charles Edward Munroe
Muraour's law – Henri Muraour
Murphy's law – Maj. Edward A. Murphy, Jr.

N

Nambu–Goldstone boson – Yoichiro Nambu and Jeffrey Goldstone
Nash equilibrium – John Forbes Nash
Nassi–Shneiderman diagram – Isaac Nassi and Ben Shneiderman
Necker cube – Louis Albert Necker
Needleman–Wunsch algorithm – Saul B. Needleman and Christian D. Wunsch
Néel temperature – Louis Néel
Nernst effect – Walther Hermann Nernst and Albert von Ettingshausen
Nernst equation – Walther Hermann Nernst
Neupert effect – Werner Neupert
Newcomb's paradox – William Newcomb
Newton's rings, Newtonian constant of gravitation, mechanics – Isaac Newton
Noether's theorem – Emmy Noether
Nordtvedt effect – Kenneth L. Nordtvedt
Nyquist frequency, Nyquist rate – Harry Nyquist
Nyquist–Shannon sampling theorem – Harry Nyquist, Claude Shannon, Edmund Taylor Whittaker, and Vladimir Kotelnikov

O

Oberth effect – Hermann Oberth
O'Connell effect – Daniel Joseph Kelly O'Connell
Olbers's paradox – Heinrich Wilhelm Olbers
Ohm's law – Georg Ohm
Okun's law – Arthur Okun
Omori's law – Fusakichi Omori
Onnes effect – Heike Kamerlingh Onnes
Oort cloud – Jan Hendrik Oort
Ostriker–Peebles criterion – Jeremiah P. Ostriker and Jim Peebles
Ostwald's dilution law, Ostwald process – Friedrich Wilhelm Ostwald
Overhauser effect – Albert Overhauser
Ovshinsky effect – Stanford R. Ovshinsky

P

Paal–Knorr synthesis – Carl Paal and Ludwig Knorr
Pareto chart, distribution, efficiency, index, principle – Vilfredo Federico Damaso Pareto
Pareto–Zipf law – Vilfredo Pareto and George K. Zipf
Parrondo's games, paradox – Juan Manuel Rodríguez Parrondo
Paschen curve, line, law – Friedrich Paschen
Paschen–Back effect – Friedrich Paschen and Ernst Back
Pasteur effect – Louis Pasteur
Paternò–Büchi reaction – Emanuele Paternò and George Büchi
Pauli exclusion principle – Wolfgang Pauli
Peano curve – Giuseppe Peano
Pearson–Anson effect – Stephen Oswald Pearson and Horatio Saint George Anson
Péclet number – Jean Claude Eugène Péclet
Peltier effect – Jean Charles Athanase Peltier
Perlin noise – Ken Perlin
Perron–Frobenius theorem – Oskar Perron, and Ferdinand Georg Frobenius
Petkau effect – Abram Petkau
Petri dish – Julius Richard Petri
Petri net – Carl Adam Petri
Peyer's patches – Johann Conrad Peyer
Pfeiffer effect – Paul Pfeiffer
Pfund line/series – August Herman Pfund
Phillips curve – William Phillips (economist)
Pigou effect – Arthur Cecil Pigou
Piobert's law – Guillaume Piobert
Pisot–Vijayaraghavan number – Charles Pisot and Tirukkannapuram Vijayaraghavan
Planck constant, length, mass, time – Max Planck
Platonic year – Plato
Pockels effect – Friedrich Carl Alwin Pockels
Pogson ratio – Norman Robert Pogson
Poincaré map, section – Henri Poincaré
Poincaré–Bendixson theorem – Henri Poincaré and Ivar Otto Bendixson
Poinsot's spirals – Louis Poinsot
Polchinski's paradox – Joseph Polchinski
Potts model – Renfrey B. Potts, Julius Ashkin, and Edward Teller
Pourbaix diagram – Marcel Pourbaix
Poynting effect, vector – John Henry Poynting
Poynting–Robertson effect – John Henry Poynting and Howard P. Robertson
Prandtl number – Ludwig Prandtl
Primakoff effect – Henry Primakoff
Proteus phenomenon – Proteus
Pulfrich effect – Carl P. Pulfrich
Purkinje effect/shift – Johannes Evangelista Purkinje
Pygmalion effect – Pygmalion
Pythagorean theorem – Pythagoras

R

Rabi oscillations – Isidor Isaac Rabi
Rademacher distribution, function, series, sum – Hans Adolph Rademacher
Rademacher–Menchov theorem – Hans Adolph Rademacher and Dmitrii Menshov
Radon transform – Johann Karl August Radon
Raman scattering – Chandrasekhara Venkata Raman
Ramsauer–Townsend effect – Carl Ramsauer and John Sealy Townsend
Ramsden circle/disc/eyepoint, eyepiece – Jesse Ramsden
Ramsey theory – Frank Plumpton Ramsey
Rapoport's rule – Eduardo H. Rapoport
Raychaudhuri's equation – Amal Kumar Raychaudhuri
Raygor Estimate Graph – Alton L. Raygor
Rayleigh criterion, distribution, fading, number, quotient, scattering, waves – Lord Rayleigh
Rayleigh–Bénard cell/convection – Lord Rayleigh and Henri Bénard
Rayleigh–Jeans law – Lord Rayleigh and James Jeans
Rayleigh–Taylor instability – Lord Rayleigh and G. I. Taylor
Rees–Sciama effect – Martin Rees and Dennis Sciama
Reidemeister moves – Kurt Reidemeister
Résal effect – Louis-Jean Résal
Rescorla–Wagner rule – Robert A. Rescorla and Allan R. Wagner
Reynolds number, Reynolds analogy – Osborne Reynolds
Ribot's law – Théodule-Armand Ribot
Ricardian equivalence – Robert Barro, David Ricardo, and Antonio de Viti de Marco
Richards controller – Charles L. Richards
Richardson's constant, equation, law – Owen Willans Richardson
Richardson number – Lewis Fry Richardson
Richter magnitude scale – Charles Francis Richter
Righi–Leduc effect – Augusto Righi and Sylvestre Anatole Leduc
Ringelmann effect – Max Ringelmann
Robertson–Walker metric – see Friedmann–Lemaître–Robertson–Walker metric, above
Roche limit – Édouard Roche
Roche sphere – Édouard Roche
Rollin film – Bernard V. Rollin
Rosenthal effect – Robert Rosenthal
Rossby waves – Carl-Gustaf Arvid Rossby
Rossi–Forel scale – Michele Stefano Conte de Rossi and François-Alphonse Forel
Rössler equation – Otto Rössler
Rossmann fold – Michael Rossmann
Royer oscillator – George H. Royer
Ruelle operator, zeta function – David Ruelle
Ruelle–Perron–Frobenius theorem – David Ruelle, Oskar Perron, and Ferdinand Georg Frobenius
Ruhmkorff coil – Heinrich D. Ruhmkorff
Runge–Lenz vector – see Laplace–Runge–Lenz vector
Runge's phenomenon – Carle David Tolmé Runge
Russell's paradox – Bertrand Russell
Rutherford experiment, scattering – Ernest Rutherford
Rybczynski theorem – Tadeusz Rybczynski
Rydberg constant, formula – Johannes Rydberg
Rydberg–Klein–Rees method – Johannes Rydberg, Oskar Klein, and Albert Lloyd George Rees

S

Sabatier or Sabattier effect – Sabatier,
Sachs–Wolfe effect – Rainer K. Sachs and Arthur M. Wolfe
Saffir–Simpson hurricane wind scale – Herbert S. Saffir and Robert ("Bob") Simpson
Sagnac effect – Georges Sagnac
Saha ionization equation – Megh Nad Saha
Salem number – Raphaël Salem
Sapir–Whorf hypothesis – Edward Sapir and Benjamin Whorf
Sasakian manifold, metric – Shigeo Sasaki
Say's law – Jean-Baptiste Say
Scheerer's phenomenon – Richard Scheerer
Schering Bridge – Harald Schering
Schild plot, regression analysis – Heinz Otto Schild
Schmidt law, Schmidt–Kennicutt law – see Kennicutt–Schmidt law, above
Schottky effect – Walter H. Schottky
Schröter effect – Johann Hieronymus Schröter
Schülen–Wilson effect – see Wilson effect, below
Schuler period, tuning – Maximilian Schuler
Schultz's rule – Adolph Hans Schultz
Schumann–Runge bands – Victor Schumann and Carle David Tolmé Runge
Schwabe solar cycle – Samuel Heinrich Schwabe
Schwarzschild effect, metric, radius – Karl Schwarzschild
Scott effect – Elizabeth L. Scott
Secchi (stellar) class, depth, disk – Pietro Angelo Secchi
Seebeck effect – Thomas Johann Seebeck
Seiberg–Witten gauge theory – Nathan Seiberg and Edward Witten
Seiberg–Witten invariant – Nathan Seiberg and Edward Witten
Senftleben–Beenakker effect – Hermann Senftleben and Jan J. M. Beenakker
Sertoli cells – Enrico Sertoli
Serre duality – Jean-Pierre Serre
Seyfert galaxy – Carl Keenan Seyfert
Shapiro effect – Irwin Shapiro
Shimizu–Morioka attractor, equations – Tatsujiro Shimizu and Nozomi Morioka
Shubnikov–de Haas effect – Wander Johannes de Haas and Lev Vasiljevich Shubnikov
Sieberg tsunami intensity scale – August Heinrich Sieberg
Sieberg–Ambraseys tsunami intensity scale – August Heinrich Sieberg and Nicholas Ambraseys
Simmons–Smith reaction – Howard Ensign Simmons, Jr.
Simpson's paradox – Edward H. Simpson
Simroth's organs – Heinrich Rudolf Simroth
Smale's horseshoe – Stephen Smale
Smale–Rössler theorem – Stephen Smale and Otto Rössler
Smith–Waterman algorithm – Temple F. Smith and Michael S. Waterman
Snell's law – Willebrord van Roijen Snell
Soloviev tsunami intensity scale – Sergey L. Soloviev
Sommerfeld–Kossel displacement law – Arnold Sommerfeld and Walther Kossel
Sørensen similarity index, similarity coefficient – Thorvald Sørensen
Spörer's law, Spörer Minimum – Gustav Spörer
St. Elmo's fire – Erasmus of Formiae
St. Robert's law – Comte Paul Ballada de Saint-Robert, a.k.a. Conte Paolo Ballada di San Roberto
Staebler–Wronski effect – David L. Staebler and Christopher R. Wronski
Stark effect – Johannes Stark
Stark ladder – Johannes Stark and Gregory Hugh Wannier
Stark–Einstein law – Johannes Stark and Albert Einstein
Stebbins–Whitford effect – Joel Stebbins and Albert Edward Whitford
Stefan's constant, law – Jožef Stefan
Stensen's duct – Niels Stensen
Stern–Levison parameter – S. Alan Stern and Harold F. Levison
Stevens effect – Joseph C. and Stanley Smith Stevens
Stevens's power law – Stanley Smith Stevens
Stewart's organs – Charles Stewart
Stewart–Tolman effect – Thomas Dale Stewart and Richard Chace Tolman
Stigler's law of eponymy – Stephen Stigler
Stirling number – James Stirling
Stokes radius – George Gabriel Stokes
Stokes shift – George Gabriel Stokes
Stolper–Samuelson theorem – Paul Samuelson and Wolfgang Stolper
Strömgren age, photometry, sphere – Bengt Georg Daniel Strömgren
Strömgren–Crawford photometry – Bengt Georg Daniel Strömgren and David L. Crawford
Stroop effect – John Ridley Stroop
Strouhal number – Vincenc Strouhal
Stueckelberg action – Ernst Carl Gerlach Stueckelberg
Sturgeon's law – Theodore Sturgeon
Sturmian trajectories – Charles François Sturm
Suess effect – Hans Eduard Suess
Suess solar cycle, DeVries solar cycle, Suess-DeVries solar cycle – Hans Eduard Suess and Hessel de Vries
Sunyaev–Zel'dovich effect – Rashid Sunyaev and Yakov Zel'dovich
Syracuse problem – see Collatz conjecture, above
Szilard–Chalmers effect – Leó Szilárd and Thomas A. Chalmers

T

Tait–Bryan angles – Peter Guthrie Tait and George H. Bryan
Talbot effect – William Henry Fox Talbot
Tanimoto coefficient, distance, measure, score, similarity – Taffee T. Tanimoto
Taylor cone – Geoffrey Ingram Taylor
Taylor-Couette flow – Geoffrey Ingram Taylor and Maurice Marie Alfred Couette
Teller–Ulam design – Edward Teller and Stanislaw Ulam
Thévenin's theorem – Léon Charles Thévenin
Thirring effect – see Lense–Thirring effect, above
Thomas precession – Llewellyn Thomas
Thomas–Fermi approximation, model – Llewellyn Hilleth Thomas and Enrico Fermi
Thomson cross-section, effect – William Thomson, 1st Baron Kelvin
Thomson structure – William (Guglielmo) Thomson
Thorndike's laws – Edward L. Thorndike
Thorson's rule – Gunnar Thorson
Thouless energy – David J. Thouless
Thwaites conjecture – see Collatz conjecture, above
Tiedemann's bodies – Friedrich Tiedemann
Tiffeneau–Demjanov rearrangement – Marc Tiffeneau and Nikolai Demyanov
Tobin's q – James Tobin
Tolman effects – Richard Chace Tolman
Tolman–Oppenheimer–Volkoff limit – Richard Chace Tolman, J. Robert Oppenheimer, and George Michael Volkoff
Tonks–Girardeau gas – Lewi Tonks and Marvin D. Girardeau
Townsend effect, ionization coefficient – John Sealy Townsend
Troxler's effect/fading – Ignaz Paul Vital Troxler
Tychonoff space – Andrey Nikolayevich Tychonoff
Tyndall effect/scattering – John Tyndall

U

Ulam conjecture – see Collatz conjecture
Ulam's packing conjecture – Stanislaw Ulam
Unruh effect – William G. Unruh

V

Vackář oscillator – Jirí Vackář
Van Allen radiation belt – James Van Allen
Van de Graaff generator – Dr. Robert Jemison Van de Graaff
Van der Pol equation, oscillator – Balthasar van der Pol
Van der Waals force – Johannes Diderik van der Waals
Van Hove singularity – Léon Van Hove
Vavilovian mimicry – Nikolai Ivanovich Vavilov
Veblen effect – Thorstein Veblen
Veitch diagram – see Karnaugh map, above
Venturi effect – Giovanni Battista Venturi
Venn diagram – John Venn
Vieille's law – Paul Marie Eugène Vieille
Vierordt's law – Karl von Vierordt
Vogel-Fulcher-Tammann equation – Hans Vogel, Gordon Scott Fulcher, and Gustav Tammann
Vogt–Russell theorem – Heinrich Vogt and Henry Norris Russell
Voigt effect, notation, profile – Woldemar Voigt
Voigt material – see Kelvin–Voigt material, above
Von Klitzing constant – Klaus von Klitzing
Von Neumann ordinal, von Neumann architecture – John von Neumann
Von Restorff effect – Hedwig von Restorff
Von Zeipel theorem – Edvard Hugo von Zeipel

W

Wadati–Benioff zone – Kiyoo Wadati and Hugo Benioff
Wahlund effect – Sten Gösta William Wahlund
Wallace's line – Alfred Russel Wallace
Walras's law – Léon Walras
Wannier function, orbital – Gregory Wannier
Wasserman 9-Panel Plot – Karlman Wasserman
Wannier–Stark ladder – Gregory Wannier and Johannes Stark
Warburg effect – Otto Warburg
Waring's problem – Edward Waring
Weber–Fechner law – Ernst Heinrich Weber and Gustav Theodor Fechner
Weberian apparatus – Ernst Heinrich Weber
Weierstrass–Casorati theorem – Karl Theodor Wilhelm Weierstrass and Felice Casorati
Weierstrass's elliptic functions, factorization theorem, function, M-test, preparation theorem – Karl Theodor Wilhelm Weierstrass
Wien bridge – Max Wien
Weissenberg effect – Karl Weissenberg
Wess–Zumino–Witten model – Julius Wess, Bruno Zumino and Edward Witten
Wess–Zumino model – Julius Wess, Bruno Zumino
Westermarck effect – Edvard Westermarck
Weston cell – Edward Weston
Wheatstone bridge – Charles Wheatstone
Whittaker function, integral, model – Edmund Taylor Whittaker
Whittaker–Shannon interpolation formula – Edmund Taylor Whittaker, John Macnaghten Whittaker, Claude Shannon
Widmanstätten pattern – Count Alois von Beckh Widmanstätten
Widom line – Benjamin Widom
Widrow–Hoff least mean squares filter – Bernard Widrow and Ted Hoff
Wiedemann–Franz law – Gustav Wiedemann and Rudolf Franz
Wiegand effect – John R. Wiegand
Wien bridge, constant, effect, law – Wilhelm Wien
Wiener filter, process – Norbert Wiener
Wigmore chart – John Henry Wigmore
Wigner energy, Wigner effect – Eugene Wigner
Wigner–Seitz cell – Eugene Wigner and Frederick Seitz
Wilson cycle – John Tuzo Wilson
Wilson effect – Alexander Wilson
Wilson–Bappu effect – Olin Chaddock Wilson and Manali Kallat Vainu Bappu
Witten index – Edward Witten
Wollaston prism – William Hyde Wollaston
Woodward–Hoffmann rules – Robert Burns Woodward and Roald Hoffmann
Wolf effect – Emil Wolf
Wulf bands – Oliver R. Wulf
Wulff–Dötz reaction – William Wulff and Karl Heinz Dötz

Y

Yarkovsky effect – Ivan Osipovich Yarkovsky
YORP effect – Ivan Osipovich Yarkovsky, John A. O'Keefe, Vladimir Vyacheslavovich Radzievskii, and Stephen J. Paddack
Young diagram, Young tableau – Alfred Young
Young's modulus – Thomas Young
Yule–Simpson effect – Edward H. Simpson and Udny Yule

Z

Zeeman effect – Pieter Zeeman
Zeigarnik effect – Bluma Zeigarnik
Zener effect – Clarence Melvin Zener
Zeno effect – Zeno of Elea
Zipf's law – George K. Zipf
Zipf–Mandelbrot law – George K. Zipf and Benoît Mandelbrot