Isaac Marino Bavaresco wrote:
> I want to know the value of the "Big G", the Universal Gravitational
> Constant, not the acceleration due to the gravity.
>=20
> 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).

I thought that's what you meant.

It's actually somewhat of a scientific embarrassment that of all the
fundamental physical constants, we only know G to within one part in 10^4 o=
r
so. There was an article not too long ago in Scientific American about this=
..
IIRC, recent work with supercold atomic fountains may provide a way to
determine it more precisely.

-- Dave Tweed
--=20
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