On Sat, Sep 03, 2005 at 02:29:09AM +1200, Russell McMahon wrote:
> >>His key point was not the 3 axes, 2 axes would usually be OK as you
> >>say, but the fact that the vector sum of gravity will be 1g 
> >>regardless
> >>of vehicle orientation. Anything above or below 1g MUST be from 
> >>other
> >>sources.
> 
> >I thought that at first, but you can have other forces and still 
> >have a
> >1g vector.  As an extreme example, add a 2g vector in the opposite
> >direction.
> 
> That example isn't included in my solution space.
> I said above or below 1g :-).

True, when it's != 1g you know there's some acceleration, but when it's
1g there might still be some.

> I suppose that some acceleration sources could exceed 2g, but this is
> liable to be for extremely short periods.

The 2g was just an extreme example.  A smaller acceleration could also
result in a total of 1g in a different direction, of course.

Chris
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