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When LHC gets going and drops a dreaded blackhole into the centre of the Earth causing it to collapse almost instantly into a 50 millmeter radius ball we who are living 6400 Km from the the centre at present will notice an immediate loss of gravity.This will not last long as we drop towards the centre very gently at first it will rapidly increase and reach a quite uncomfortable level!.
Does anyone have any ideas how the earth or any other planet could lose its gravity?? either over a long or short amount of time..any ideas would be appreciated, cheers.
Gravity is related to mass and acceleration. As soon as you stop accelerating you become 'weightless' if in space. So to get to a state without gravity I think you would need to be as far away from any mass and acceleration as possible.
Gravity gets weaker as we travel away from the earth so it must be stronger as we get closer to the centre. The density in the centre of the earth must be immense. If you could remove the core of the planet wouldn't it collapse into dust.