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A003673 Current estimate of decimal expansion of fine-structure constant alpha.
(Formerly M4325)
1
0, 0, 7, 2, 9, 7, 3, 5, 2, 5, 3, 7, 6 (list; constant; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

The estimate is continually changing.

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, Constants, Units and Uncertainty

EXAMPLE

alpha = 7.2973525376 * 10^-3; standard uncertainty 0.0000000050 * 10^-3

CROSSREFS

Cf. A005600, A082726.

Sequence in context: A154176 A156547 A180872 * A021141 A147677 A090243

Adjacent sequences:  A003670 A003671 A003672 * A003674 A003675 A003676

KEYWORD

cons,nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein

EXTENSIONS

Updated May 20 2003

Updated by Omar E. Pol (info(AT)polprimos.com), Aug 09 2009

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.