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This is a list of scientific units named after people . For other lists of eponyms (names derived from people) see eponym .
Note that by convention , the name of the unit is properly written in all-lowercase whereas its abbreviation is capitalized, but when a unit name contains a person's name as an adjective, the name is capitalized, for example degree Celsius and Mach number .
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becquerel (Bq ), radioactivity – Henri Becquerel
degree Celsius (°C), temperature – Anders Celsius
coulomb (C ), electric charge – Charles-Augustin de Coulomb
farad (F ), capacitance – Michael Faraday
gray (Gy ), absorbed dose of radiation – Louis Harold Gray
henry (H ), inductance – Joseph Henry
hertz (Hz ), frequency – Heinrich Rudolf Hertz
joule (J ), energy, work, heat – James Prescott Joule
newton (N ), force – Isaac Newton
ohm (Ω), electrical resistance – Georg Ohm
pascal (Pa ), pressure – Blaise Pascal
siemens (S ), electrical conductance – Werner von Siemens
sievert (Sv ), radiation dose equivalent – Rolf Sievert
tesla (T ), magnetic flux density – Nikola Tesla
volt (V ), electric potential, electromotive force – Alessandro Volta
watt (W ), power, radiant flux – James Watt
weber (Wb ), magnetic flux – Wilhelm Eduard Weber
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biot (Bi ), electric current – Jean-Baptiste Biot
buckingham (B ), electric quadrupole moment – A. David Buckingham
debye (D ), electric dipole moment – Peter Debye
eotvos (E ), gravitational gradient – Loránd Eötvös
galileo (Gal), acceleration – Galileo Galilei
gauss (G or Gs), magnetic flux density – Carl Friedrich Gauss
gilbert (Gb ), magnetomotive force – William Gilbert
goeppert-mayer (GM ), two-photon absorption cross section – Maria Goeppert-Mayer
kayser (kayser), wavenumber – Heinrich Kayser
maxwell (Mx ), magnetic flux – James Clerk Maxwell
oersted (Oe ), magnetic field strength – Hans Christian Ørsted
poise (P ), dynamic viscosity – Jean Léonard Marie Poiseuille
Rayl or Rayleigh (Rayl), acoustic impedance – John William Strutt, 3rd Baron Rayleigh
rayleigh (R ), photon flux – Robert John Strutt, 4th Baron Rayleigh
stokes (S or St), kinematic viscosity – George Gabriel Stokes
No longer in use
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Others
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ångström (Å), distance – Anders Jonas Ångström
baud (Bd ), symbol rate – Emile Baudot
Bark scale , psychoacoustical scale – Heinrich Barkhausen
brewster (B ), stress optic coefficient – David Brewster
centimorgan (cM ), recombination frequency – Thomas Hunt Morgan
curie (Ci ), radioactivity – Marie and Pierre Curie
dalton (Da ), atomic mass – John Dalton
darcy (D ), permeability, – Henry Darcy
decibel (dB ) dimensionless proportions and ratios, e.g. relative power levels – Alexander Graham Bell
degree Fahrenheit (°F), temperature – Daniel Gabriel Fahrenheit
degree Rankine (°R), temperature – William John Macquorn Rankine
Dobson unit (DU ), atmospheric ozone – Gordon Dobson
erlang (E ), dimensionless volume of telecommunications traffic – Agner Krarup Erlang
fermi (fm ), distance – Enrico Fermi
hartley (Hart), information – Ralph Hartley
Hounsfield scale , radiodensity – Godfrey Newbold Hounsfield
jansky (Jy ), electromagnetic flux – Karl Jansky
langley (ly ), solar radiation – Samuel Pierpont Langley
langmuir (L ), gas exposure dose – Irving Langmuir
Mach number (Ma ), relative speed – Ernst Mach
neper (Np ), relative power level – John Napier
degree Öchsle (°Oe), density – Ferdinand Öchsle
Rockwell scale (HR ), indentation hardness – Stanley Rockwell
röntgen (R ), dosage of X-rays or gamma radiation – Wilhelm Röntgen
Richter magnitude , earthquake power – Charles Francis Richter
Scoville units , capsaicin content of chili peppers – Wilbur Scoville
shannon (Sh ), information – Claude Shannon [1 ]
siegbahn (xu ), distance – Manne Siegbahn
svedberg (S or Sv), sedimentation rate – Theodor Svedberg
sverdrup (Sv ), volume transport rate – Harald Sverdrup
torr (Torr), pressure – Evangelista Torricelli
troland (Td ), luminance (human eye) – Leonard Troland
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No longer in use
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See also
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References
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R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=List_of_scientific_units_named_after_people&oldid=1179917219 "
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