Register | Sign In


Understanding through Discussion


EvC Forum active members: 65 (9164 total)
3 online now:
Newest Member: ChatGPT
Post Volume: Total: 916,913 Year: 4,170/9,624 Month: 1,041/974 Week: 368/286 Day: 11/13 Hour: 0/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   la brea tar pits/ humphreys
joz
Inactive Member


Message 5 of 37 (24039)
11-24-2002 11:12 AM


Try this opinion from Dr Hugh Ross of reasons to believe ministry...
Page not found - Reasons to Believe
in particular
quote:
One of the errors of the original Starlight and Time proposal which remains in Humphreys' reconstruction of his argument, is the claim that gravity is radically different in a bounded and an unbounded universe. The falsity of this claim is obvious to people familiar with relativity theory and cosmology and is easily explainable to non-specialists. Humphreys' continued insistence on this is further evidence of misunderstandings of the physics of general relativity and cosmology.
In general relativity, matter produces spacetime curvature, and spacetime curvature manifests itself in what we call gravity. The relationship between the spacetime curvature and the matter content of the universe is given by the Einstein field equations, which are customarily expressed in shorthand notation as
Gm n =8p GTm n
The left hand side of this equation, Gm n , is the Einstein curvature tensor, which is composed of products of the spacetime metric tensor gm n with derivatives of that tensor with respect to the spacetime coordinates23 The right hand side contains numerical constants (G is Newton's gravitational constant) and the "stress-energy" tensor, T m n , also called the "energy-momentum" tensor. It contains information about the matter, energy, pressure and momentum content of the universe. It is obvious from this equation that if two universes have the same energy-momentum T m n ,, then their Einstein curvature tensors will also be identical. The matter-filled region of the bounded universe which Humphreys postulates has an identical energy-momentum tensor to the unbounded universe he wishes to replace, and consequently it has spacetime curvature which is identical to that of the unbounded universe. Gravitational behaviors such as the "Newtonian gravitational field"24 and time dilation are a consquence of the spacetime curvature. Identical spacetime curvature means that the gravitational behaviors must be identical. This fact alone is an adequate rebuttal of Humphreys' claims.

Even other creationists don`t like it.....

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024