@comp_atkins: thanks for being one of the few that actually bothered to engange in an intelectual conversation here. People seems to be missing my point. its an Idea.. i very much doubt there is a sphere at the centre of the earth, for reason others have described (pressures and density). However this is a thought experiment, not a thesis... so why do people (not yourself) just laugh at me for even suggesting somthing?
@SaintLeonidas said:
@RedentSC said:
@SaintLeonidas: OKay, so if i don't have a basic understanding of General Relitivity (which i never claimed i did) please explain why this is not possible. as mass bends spacetime, in the direction of the centre of mass. when at the centre of the earth, the centre of mass is not the centre of the earth (reletive to me)
Is this not correct? and if not, explain why its not. you cannot just dismiss an hypothosis without expliantion, you may as well just say "god made it that way"
I'm not trying to prove you wrong, i just want evidence or an explination either way. As my "basic" A-Level understanding of physics clearly doens't cut the mustard, where as your clearly does
So you are throwing a theory out into the world, that you admit is based only on your limited knowledge of the principles at play - and want others to prove or disprove why you are wrong? I can most definitely dismiss a hypothesis if the presenter has presented anything that can be dismissed by basic science. There are no gravity-less spheres in the middle of large bodies of mass. Just can't happen. Just a dense center - and if the force of gravity is large enough, then the opposite of what you say is true, the mass gets compressed and so dense it becomes a black hole...which has an inescapable level of gravity.
Show me the basic science that wont allow this then... and it will all be done. Otherwise, you are just throwing out hot air. At least i attempted to explain why this might be possible in theory, and not just say "it can't happen" .... thats not the scientific way, you may as well say god made it that way.....
Exactly, we know that gravity can warp spacetime to the point of a singularity, we understand this. but we are talking about a though experiement here, not an actual theory. I do not have a university education in Physics however i do in Mathematics and Trig, which allows me to understand the broad concepts of general relitivity.
Now, once again, i agree that there will be no void in the centre of the earth, fair enough, but lets take a smaller astronomical object, like say, an small (perfectly sperical) body in space. Would gravity act in such a was as to product this void? Matter gets crushed at the centre of this hypothetical object yet but only (and ONLY) in the direction of the centre of mass that is creating the warping of spacetime, which in the case of the centre of this sphere... is outwards, not inwards. Therefor all the gravity is acting to "pull" anything at the centre outwards, as there is nothing in the centre to "pull" it inwards.... even if there was one atom at the centre of this "void" then it would get pulled to the walls of this void.
Soo... Once again (and for the last time) this is a thought experiement, no need to have ago at my scientific credentials. have a go at the arguement, not the messenger.
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