[pct-l] RE: Gravity

[pbaily at webuniverse.net (Phil Baily)]

The distribution of mass within the earth determines the center of gravity
used for computing  d2. If the earth is more dense near you then d2 is
smaller than it would be in a position where the earth is less dense.
Therefore, gravitational attraction is stronger. That is how density changes
gravitational force.

----- Original Message ----- 
From: "margarete hochhut" <hochhut@web.de>
To: <pct-l@mailman.backcountry.net>
Sent: Thursday, December 08, 2005 7:29 AM
Subject: Re: [pct-l] RE: Gravity


Doc Holliday wrote:
> I dont see how a change in density could cause a change in gravity, since
gravity is directly porportanil to the product of the masses involved in the
attraction. A pound of lead weighs the same as a pound of feathers even
though the lead is more dense. They both have the same mass in the specified
quantitys. In other words, You, mass 1 is attracted to the earth mass2 as a
product of your masses.  M1*M2/d2   where d is the distance between the two
masses.  The gravitational effect decreases inversly proportanal to the
square of the distance between the two mases.  In other words, gravity is
increasing because of an increase in mass... mainly people are more
massive.....<


Excellent contribution. May I ad that you forgot to mention the influence of
the hole in the ozon layer at the gravitational effect. ;o)

Rita
Frankfurt, Germany
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