Well it might be constant on earth to two sig. figs. On a side topic my
friend spends his life wandering inhospitable places measuring gravity. He
then maps it. From these data and the variations in them he can guess as to
the nature of the subsurface features. The unit he uses is the Gal which
equals 1 cm/s^2. He will tell you that the acceleration due to gravity is
definitely not constant even on earth.
Scott C
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of Gene Mechtly
> Sent: Friday, February 16, 2001 1:14 PM
> To: U.S. Metric Association
> Cc: U.S. Metric Association
> Subject: [USMA:11044] Variables & Constants
>
>
> On Thu, 15 Feb 2001, James R. Frysinger wrote:
>
> > ... 9.8 m/s2 is neither "universal" nor a "constant",...
> Agreed, Jim, if you substitute the symbol g (a variable) for the
> number 9.8 (which *is* a constant, just as 9.80665 is a numerical
> constant).
>
> Gene.
>
>
