25 Apr
2012
25 Apr
'12
6:02 p.m.
* rcs@xmission.com <rcs@xmission.com> [Apr 25. 2012 19:54]:
Today's XKCD cartoon has a nice collection of approximations.
There's the ancient expression 6 pi^5 for the mass ratio of the proton to the electron, and the more accurate (e^8 - 10)/phi. Robert Munafo & REIS are at least partially responsible.
Rich
Already made it into the OEIS: https://oeis.org/A073009 8-) P.S.: my personal approximation for "seconds in a year" if Pi*10^7
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