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%I M4057 #118 Jan 30 2023 14:05:53
%S 6,6,2,6,0,7,0,1,5
%N Decimal expansion of the Planck constant h (Joule * second).
%C From _Raphie Frank_, Dec 17 2012: (Start)
%C There are at least five different methods of determining Planck's constant (h). Listed below are the best estimate CODATA values for each of these five methods as of December 2012.
%C 6.6260657(88)*10^(-34) J*s - Faraday Constant method.
%C 6.6260678(27)*10^(-34) J*s - Josephson Constant method.
%C 6.62606889(23)*10^(-34) J*s - Watt Balance method.
%C 6.6260724(57)*10^(-34) J*s - Magnetic resonance method.
%C 6.6260745(19)*10^(-34) J*s - X-ray crystal density method. (End)
%C The latest definition is that the Planck constant h is exactly 6.62607015*10^(-34) J*s, according to the ISO standard (effective on May 20th, 2019). h is one of the seven 1990 SI units, see the second BIPM link and A322415. - _Ralf Steiner_, Dec 17 2018 and _Wolfdieter Lang_, Feb 12 2019
%D H. J. Fischbeck and K. Fischbeck, Formulas. Facts and Constants, Springer-Verlag, NY, 2nd ed., 1987.
%D K. R. Lang, Astrophysical Data: Planets and Stars, Springer-Verlag, NY, 1991.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H BIPM, <a href="https://www.bipm.org/en/measurement-units/rev-si/">On the revision of the SI</a>, BIPM, Nov 11 2018.
%H BIPM, <a href="https://www.bipm.org/utils/common/pdf/CGPM-2018/26th-CGPM-Resolutions.pdf">On the revision of the International System of Units (SI)</a>, BIPM, Nov 13-16 2018.
%H Gavin Clarke, <a href="http://www.theregister.co.uk/2012/11/20/quantum_kilogram/">Glorious silicon globes could hold key to elusive PERFECT kilogram</a>, The Register, Nov 20 2012.
%H NIST Physics Laboratory, <a href="http://physics.nist.gov/cgi-bin/cuu/Value?h">Planck constant</a>
%H James Stein, <a href="https://www.pbs.org/wgbh/nova/article/plancks-constant/">Planck's Constant: The Number That Rules Technology, Reality, and Life</a>, NOVA's Physics blog, Oct 24 2011.
%H Stanislav Sýkora, <a href="http://www.ebyte.it/stan/blog12to14.html#14Dec31">Magnetic Resonance on OEIS</a>, Stan's NMR Blog (Dec 31, 2014), Retrieved Nov 12, 2019.
%H Eric Weisstein, World of Physics, <a href="http://scienceworld.wolfram.com/physics/PlancksConstant.html">Planck's Constant</a>
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Planck_constant">Planck's constant</a>
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Redefinition_of_SI_base_units">Redefinition of SI base units</a>
%e Planck constant h = 6.62607015 * 10^{-34) J * s. J (Joule) = kg m^2 s^(-1).
%Y Cf. A230458 (Δν_{Cs}), A003678 (c), A081823 (e), A070063 (k), A254181 (the reduced Planck constant), A322415.
%Y Cf. decimal expansions of the Planck units: A078300, A078301, A078302, A210491, A246505.
%K nonn,cons,fini,full
%O -33,1
%A _N. J. A. Sloane_, _Mira Bernstein_
%E Corrected and extended by _Robert G. Wilson v_, Nov 21 2002
%E Changed the value to conform to latest measurements _Robert G. Wilson v_, Oct 21 2010
%E Updated to conform with CODATA 2010 recommended value _Raphie Frank_, Dec 15 2012
%E Updated by _Omar E. Pol_, Dec 11 2016
%E Updated by _Ralf Steiner_, Dec 17 2018
%E Update for May 20 2019 by _Wolfdieter Lang_, Feb 12 2019
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