Scientific Phenomena Named After People - M

M

• Mach band/effect, number, principle – Ernst Mach
• Mach–Zehnder interferometer – Ludwig Mach and Ludwig Zehnder
• Madelung constant, Madelung rule, Madelung energy – Erwin Madelung
• Maggi–Righi–Leduc effect – Gian Antonio Maggi, Augusto Righi and S. Leduc
• Magnus effect – Heinrich Gustav Magnus
• Mahalanobis distance – Prasanta Chandra Mahalanobis (প্রশান্ত চন্দ্র মহলানবিস)
• Mahler measure, Mahler's theorem – Kurt Mahler
• Malmquist bias, effect – Karl Gunnar Malmquist
• Malus' law – Étienne-Louis Malus
• Malthusian parameter – named by Ronald Fisher as a criticism of Thomas Robert Malthus
• Malthusian catastrophe, growth model – Thomas Robert Malthus
• Mandel'shtam–Brillouin scattering – Leonid Isaakovich Mandel'shtam and Léon Brillouin
• Marangoni cell/convection (a.k.a. Bénard–Marangoni convection) – see Bénard–Marangoni cell/convection, above
• Marangoni effect (a.k.a. Gibbs–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 effect (optics) – James Clark Maxwell
• Maxwell–Boltzmann distribution – James Clark Maxwell and Ludwig Boltzmann
• Maxwell–Wien bridge – James Clark Maxwell(?) and Wilhelm Wien
• Mazurkiewicz trace – Antoni Mazurkiewicz
• McCollough effect – Celeste McCollough
• McCulloch–Pitts neuron – Warren McCulloch and Walter Pitts
• McGurk effect (a.k.a. McGurk–MacDonald effect) – Harry McGurk (and John MacDonald)
• Mealy machine – George H. Mealy
• Meissner effect (a.k.a. Meissner–Ochsenfeld effect) – Walter Meissner (and Robert Ochsenfeld)
• Mendelian inheritance – Gregor Mendel
• Mercalli intensity scale (Modified Mercalli scale) – Giuseppe Mercalli
• Metonic cycle – Meton of Athens
• Meyers synthesis – Albert I. Meyers
• Mie scattering (a.k.a. Lorenz–Mie scattering) – Gustav Mie (and Ludvig Lorenz)
• Mihăilescu's theorem (a.k.a. Catalan's conjecture) – Preda Mihăilescu
• Mikheyev–Smirnov–Wolfenstein effect – Stanislav Mikheyev, Alexei Smirnov, and Lincoln Wolfenstein
• Miller effect – John Milton Miller (John M. Miller)
• Miller indices (a.k.a. Miller–Bravais indices) – William Hallowes Miller (and Auguste Bravais)
• Misznay–Schardin effect – Col. Misznay and Hubert Schardin
• Mögel–Dellinger effect – see Dellinger effect, above
• Mohorovičić discontinuity (Moho) – Andrija Mohorovičić
• Mohr's circle – Christian Otto Mohr
• Mohr–Coulomb theory – Christian Otto Mohr and Charles-Augustin de Coulomb
• Mooers' 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
• 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
• Murphy's law – Maj. Edward A. Murphy, Jr.