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 A003673 Decimal expansion of fine-structure constant alpha. (Formerly M4325) 9
 0, 0, 7, 2, 9, 7, 3, 5, 2, 5, 6 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 REFERENCES John Barrow, The Constants of Nature, 367pp, Jonathan Cape, 2002. H. J. Fischbeck and K. Fischbeck, Formulas. Facts and Constants, Springer-Verlag, NY, 2nd ed., 1987. K. R. Lang, Astrophysical Data: Planets and Stars, Springer-Verlag, NY, 1991. Martin J. Rees. Just Six Numbers: the deep forces that shape the universe. Phoenix. 1999 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS NIST, fine-structure constant Wikipedia, Fine-structure constant FORMULA alpha = e^2/(4*Pi*E*h*c), where e is the elementary charge (A081823), E is the electric constant (A081799), h is the reduced Planck constant (A254181), c is the speed of light (A003678). - Ilya Gutkovskiy, Jul 27 2016 alpha = V_n1/c = A081800/A003678. - Omar E. Pol, Mar 11 2018 EXAMPLE alpha = 7.29735256... * 10^-3 = 0.00729735256... MATHEMATICA UnitConvert[Quantity["FineStructureConstant"]] (* requires Mathematica 9+; Andrey Zabolotskiy, Aug 15 2016 *) CROSSREFS Cf. A005600, A082726. Sequence in context: A154176 A156547 A180872 * A021141 A246948 A248283 Adjacent sequences:  A003670 A003671 A003672 * A003674 A003675 A003676 KEYWORD cons,nonn AUTHOR EXTENSIONS Updated May 20 2003 Updated by Omar E. Pol, Aug 09 2009, R. J. Mathar, Dec 15 2012 Updated by Arkadiusz Wesolowski, Feb 08 2016 Definition edited by N. J. A. Sloane, Feb 11 2016 STATUS approved

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Last modified February 23 16:16 EST 2020. Contains 332175 sequences. (Running on oeis4.)