Re: Accuracy / precision / resolution / etc.

[Leigh Palmer <palmer@SFU.CA>]

>  a) the mass of the sun is known to about one percent.
>  b) Newton's gravitational constant is known to a little better than a
> tenth of a percent.
>  c) The product of these two quantities is known to about one part in ten
> to the eighth.  There's no way you could have known that from the numbers
> themselves.  You have to understand the physics.

I guess I don't understand the physics here. It seems to me that,
by my physics, the mass of the Sun and the gravitational constant
must be known to the *same* relative uncertainty.

Please explain.

Leigh