At 06:21 PM 2/16/2011, you wrote:
>I want to know the value of the "Big G", the Universal Gravitational
>Constant, not the acceleration due to the gravity.
>
>I've seen values from 6:6656e-11 m^3.kg^-1.s^-2 to 6.6873e-11, and also
>6:67259e-11 and 6.67428e-11 (Wikipedia).

Wikipedia references the following document:
http://physics.nist.gov/cuu/Constants/codata.pdf
...which probably has more information than you want on what scientists
believe the Newtonian constant of gravity to be. Figure 2 summarizes
recent experiments, and there is a lot more information in the text and
table XXVII (the latter also has their "bottom line" recommended=20
value and relative
standard uncertainty). I think if you have to ask, this is probably more
than good enough...

>Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the rewar=
d"
speff@interlog.com             Info for manufacturers: http://www.trexon.co=
m
Embedded software/hardware/analog  Info for designers:  http://www.speff.co=
m


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