# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/

Search: id:a003676
Showing 1-1 of 1

%I A003676 M4057 #122 Aug 01 2024 05:52:11
%S A003676 6,6,2,6,0,7,0,1,5
%N A003676 Decimal expansion of the Planck constant h (Joule * second).
%C A003676 From _Raphie Frank_, Dec 17 2012: (Start)
%C A003676 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 A003676 6.6260657(88)*10^(-34) J*s - Faraday Constant method.
%C A003676 6.6260678(27)*10^(-34) J*s - Josephson Constant method.
%C A003676 6.62606889(23)*10^(-34) J*s - Watt Balance method.
%C A003676 6.6260724(57)*10^(-34) J*s - Magnetic resonance method.
%C A003676 6.6260745(19)*10^(-34) J*s - X-ray crystal density method. (End)
%C A003676 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 A003676 H. J. Fischbeck and K. Fischbeck, Formulas. Facts and Constants, Springer-Verlag, NY, 2nd ed., 1987.
%D A003676 K. R. Lang, Astrophysical Data: Planets and Stars, Springer-Verlag, NY, 1991.
%D A003676 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H A003676 BIPM, <a href="https://www.bipm.org/en/measurement-units/rev-si/">On the revision of the SI</a>, BIPM, Nov 11 2018.
%H A003676 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 A003676 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 A003676 NIST Physics Laboratory, <a href="http://physics.nist.gov/cgi-bin/cuu/Value?h">Planck constant</a>
%H A003676 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 A003676 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 A003676 Eric Weisstein, World of Physics, <a href="http://scienceworld.wolfram.com/physics/PlancksConstant.html">Planck's Constant</a>
%H A003676 Wikipedia, <a href="http://en.wikipedia.org/wiki/Planck_constant">Planck's constant</a>
%H A003676 Wikipedia, <a href="https://en.wikipedia.org/wiki/Redefinition_of_SI_base_units">Redefinition of SI base units</a>
%e A003676 Planck constant h = 6.62607015 * 10^(-34) J * s.  J (Joule) = kg m^2 s^(-1).
%Y A003676 Cf. A230458 (Δν_{Cs}), A003678 (c), A081823 (e), A070063 (k), A254181 (the reduced Planck constant), A322415.
%Y A003676 Cf. decimal expansions of the Planck units: A078300, A078301, A078302, A210491, A246505.
%K A003676 nonn,cons,fini,full
%O A003676 -33,1
%A A003676 _N. J. A. Sloane_, _Mira Bernstein_
%E A003676 Corrected and extended by _Robert G. Wilson v_, Nov 21 2002
%E A003676 Changed the value to conform to latest measurements _Robert G. Wilson v_, Oct 21 2010
%E A003676 Updated to conform with CODATA 2010 recommended value _Raphie Frank_, Dec 15 2012
%E A003676 Updated by _Omar E. Pol_, Dec 11 2016
%E A003676 Updated by _Ralf Steiner_, Dec 17 2018
%E A003676 Update for May 20 2019 by _Wolfdieter Lang_, Feb 12 2019

# Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE