This is a list of scientific phenomena and concepts named after people (eponymous phenomena). For other lists of eponyms, see eponym.
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Abderhalden–Fauser reaction – Emil Abderhalden and August Fauser (1856–1938) 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 (a.k.a. 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 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 (a.k.a. Potts model) – Julius Ashkin and Edward Teller Asinger reaction – Friedrich Asinger Auger effect (a.k.a. Auger-Meitner 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
