Re: What is weight?

[Leigh Palmer <palmer@SFU.CA>]

> > Consider the gravitational field outside a uniformly dense
> > infinite plane. What is so difficult about that?
> There is so much talking past each other on this Board. I meant in
> practical terms, a uniform field over an extended region cannot be
> found. My choice of the word 'imagine' was unfortunate. I'm not even
> sure I can imagine an infinite plane of mass either, but we do do such
> things in our classes.

Now wait just a darn minute there. How large is your extended
region? To what degree must the field be practically uniform?
You give me the numbers; I'll design the finite source. Surely
you can see that this is a simple task.

Leigh