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A003673
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Decimal expansion of fine-structure constant alpha.
(Formerly M4325)
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15
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0, 0, 7, 2, 9, 7, 3, 5, 2, 5, 6
(list;
constant;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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REFERENCES
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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).
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LINKS
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FORMULA
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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
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EXAMPLE
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alpha = 7.29735256... * 10^-3 = 0.00729735256...
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MATHEMATICA
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UnitConvert[Quantity["FineStructureConstant"]] (* requires Mathematica 9+; Andrey Zabolotskiy, Aug 15 2016 *)
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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Updated May 20 2003
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STATUS
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approved
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