Physics:List of scientific constants named after people

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This is a list of physical and mathematical constants named after people. Eponymous constants and their influence on scientific citations have been discussed in the literature.

• Apéry's constant – Roger Apéry
• Archimedes' constant (π, pi) – Archimedes
• Avogadro constant – Amedeo Avogadro
• Balmer's constant – Johann Jakob Balmer
• Belphegor's prime – Belphegor (demon)
• Bohr magneton – Niels Bohr
• Bohr radius – Niels Bohr
• Boltzmann constant – Ludwig Boltzmann
• Brun's constant – Viggo Brun
• Cabibbo angle – Nicola Cabibbo
• Chaitin's constant – Gregory Chaitin
• Champernowne constant – D. G. Champernowne
• Chandrasekhar limit – Subrahmanyan Chandrasekhar
• Copeland–Erdős constant – Paul Erdős and Peter Borwein
• Coulomb constant (electric force constant, electrostatic constant, ke ) – Charles-Augustin de Coulomb
• Eddington number – Arthur Stanley Eddington
• Dunbar's number – Robin Dunbar
• Embree–Trefethen constant
• Erdős–Borwein constant
• Euler–Mascheroni constant ([math]\displaystyle{ \gamma }[/math]) – Leonhard Euler and Lorenzo Mascheroni
• Euler's number ([math]\displaystyle{ e }[/math]) – Leonhard Euler
• Faraday constant – Michael Faraday
• Feigenbaum constants – Mitchell Feigenbaum
• Fermi coupling constant – Enrico Fermi
• Gauss's constant – Carl Friedrich Gauss
• Graham's number – Ronald Graham
• Hartree energy – Douglas Hartree
• Hubble constant – Edwin Hubble
• Josephson constant – Brian David Josephson
• Kaprekar's constant – D. R. Kaprekar
• Kerr constant – John Kerr
• Khinchin's constant – Aleksandr Khinchin
• Landau–Ramanujan constant – Edmund Landau and Srinivasa Ramanujan
• Legendre's constant (one, 1) – Adrien-Marie Legendre
• Loschmidt constant – Johann Josef Loschmidt
• Ludolphsche Zahl – Ludolph van Ceulen
• Mean of Phidias (golden ratio, [math]\displaystyle{ \phi }[/math], phi) – Phidias
• Meissel–Mertens constant
• Moser's number
• Newtonian constant of gravitation (gravitational constant, [math]\displaystyle{ G }[/math]) – Sir Isaac Newton
• Planck constant ([math]\displaystyle{ h }[/math]) – Max Planck

• Reduced Planck constant or Dirac constant ([math]\displaystyle{ h }[/math]-bar, ħ) – Max Planck, Paul Dirac

• Ramanujan–Soldner constant – Srinivasa Ramanujan and Johann Georg von Soldner
• Richardson constant – Owen Willans Richardson
• Rayo's number – Agustin Rayo
• Rydberg constant – Johannes Rydberg
• Sommerfeld constant – Arnold Sommerfeld
• Sagan's number – Carl Sagan
• Sackur–Tetrode constant – Otto Sackur and Hugo Tetrode
• Sierpiński's constant – Wacław Sierpiński
• Skewes' number – Stanley Skewes
• Stefan–Boltzmann constant – Jožef Stefan and Ludwig Boltzmann
• Theodorus' constant (√3 ≅ ±1.732050807568877...) – Theodorus of Cyrene
• Tupper's number – Jeff Tupper
• Viswanath's constant – Divakar Viswanath
• von Klitzing constant – Klaus von Klitzing
• Wien displacement law constant – Wilhelm Wien

See also

• List of eponymous laws, for a list of laws named after people
• List of scientific laws named after people
• List of scientists whose names are used in physical constants