Your weight is a measure of the pull of gravity between you and the body you
are standing on. This force of gravity depends on a few things. First, it
depends on your mass and the mass of the planet you are standing on. If you
double your mass, gravity pulls on you twice as hard. If the planet you are
standing on is twice as massive, gravity also pulls on you twice as hard. On
the other hand, the farther you are from the center of the planet, the weaker
the pull between the planet and your body. The force gets weaker quite
rapidly. If you double your distance from the planet, the force is
one-fourth. If you triple your separation, the force drops by one-ninth. Ten
times the distance, one-hundredth the force. See the pattern? The force drops
off with the square of the distance.




Douglas Brown
Email: [EMAIL PROTECTED]
----- Original Message -----
From: "cfhelp" <[EMAIL PROTECTED]>
To: "CF-Community" <[EMAIL PROTECTED]>
Sent: Tuesday, September 10, 2002 12:14 PM
Subject: RE: Hole in the Earth?


> Nobody weights more or less on or in any planet, moon or other object just
> because you are there. Your weight is set by your mass. Jupiter is heavier
> than Earth and Earth is heaver than Venus. I am heavier than most people
> because I have a large mass (I am a Tall Fat Bustard). This being said the
> reason why you weight less on Luna (that's our moon) is because the scale
> has changed. But in the center of the earth the scale is still Earths.
>
> The pressure would be intense. Oh say, much more than being a few miles
> below the surface of the ocean. Of course you would be liquefied and then
> weight less because you would have changed your mass.
>
> Quantum Mechanics anyone?
>
> Rick
>
> -----Original Message-----
> From: Jochem van Dieten [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, September 10, 2002 12:19 PM
> To: CF-Community
> Subject: Re: Hole in the Earth?
>
> Robert Everland wrote:
> > Wouldn't it be the closer you go to the center the more you weighed.
Cause
> > if you got lighter, ther would be no reason for the different layers of
> the
> > core to be hotter because they're wouldn't be enough pressure on it. This
> is
> > just me theorizing.
>
> No. Weight is defined as the nett force you excert on an object as the
> result of your mass being attracted by gravity. Since the gravity is
> equal in each direction, you would indeed weight nothing. But you would
> feel a pretty high pressure of an entire planet on top of you. Subtle
> difference between weight and mass.
>
> Another way to look at it is using the concept of minimizing the
> potential energy in a system (which is a tendency of all natural systems).
> If you exchange a certain volume of the most dense part of the core (the
> center) with a less dense part (the crust) that requires labour. You
> move something that has a high mass against the gravity which requires a
> lot of energy, and you move something that has a lower mass in the
> direction of the gravity, which will only yield a little bit of energy.
>
> Jochem
>
>
> 
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