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To: Zardoz who wrote (88689)	8/11/2002 9:46:48 AM
From: long-gone	Read Replies (1) \| Respond to of 116767

but you don't mention the pressure of being WRONG AGAIN a about the dow Vs gold?

To: Zardoz who wrote (88689)	8/11/2002 5:09:18 PM
From: E. Charters	Read Replies (3) \| Respond to of 116767

Pressure comes from gravity. Without it there is none. As you go towards the core, there pressure due to gravity becomes less as it is more and more balanced by a greater and greater opposing gravity which is created by the mass accumulating "behind it, or towards the surface", therefore, each particle is attracted to the centre of a body less and less. There are two opposing pulls being created, the one from mass in one direction, and the other from mass accumulating behind the body as it travels towards the centre. It follows that if a body is equadistant between two bodies of the same mass, then the gravitational pull being equal in all directions, there is no net in any direction, ergo, there is weightlessness. This is seen from G(M1M2)/(R1*R2) Where G is a constant, M is mass for each body and R is the distance to each centre of mass. If one travels from the earth to the moon, one eventually falls towards the moon as its closeness makes its gravity predominate. This falling is weight, or pressure in that direction. If something is placed opposed in movement or constrained somehow along that path, this pressure mentioned would be felt if the two bodies were to meet. At one point in the travel between the two bodies,.there is no tendency to fall in either direction, and at that point there would be weightlessness between the two other major attracting bodies. To extend the point further, if at that point there were to be attached to the body (at this gravitational zero point), contiguous bodies on both sides, then for each body so placed there would seem to be pressure upon the middle body of a greater and greater amount as one would stack these bodies in opposed directions. But this pressure is equal in both directions. Bodies so stacked in one direction pull the body "that way", and so stacked on the other side, pull it in an opposite direction. If the body then were separated by one inch in the centre from either "stack" there would be no tendency for it to go one way or the other. Hence we can see that at the centre there could be no pressure forcing the body against either stack of bodies. It is a paradox, as a free body diagram would demonstrate, as the two halves of the contiguous body do attract to each other, creating a pressure between them. But it is not true that this pressure creates a greater central tendency of material as one goes towards the centre, because falling towards the centre can only be caused by an imbalance of gravitational pull, and at the centre there is no imbalance. Hence the heaviest material would be found where the lessening imbalance of pull can no longer overcome the density and turgidity so created. EC<:-}