(August 4, 2015 at 8:03 pm)IATIA Wrote:(August 4, 2015 at 8:59 am)Redbeard The Pink Wrote:
I always found the rubber sheet thing very confusing. Basically, the 'warping' of space-time by matter cannot really be displayed as such. I thought that maybe it could be shown better with a three-dimensional Euclidian grid then just pick a point and pull everything to it. I have tried on a couple of occasions to do that in a 3-D modeling program, but I am not very good at 3-D modeling. All I have is Bryce 3D.
Back to gravity. In reality, if something is in freefall, it is stationary with respect to space-time and that is the natural state of anything. All other forces disrupt this natural state. In effect, we are hurtling outward from the earth at 32ft/s/s with respect to space-time.
And to the OP, IMHO, we are being pushed toward the earth rather than pulled toward the earth. Just like a vacuum, you do not get sucked into space, you get pushed.
You only get pushed into the vacuum of space if you are in an atmosphere. It is the atmosphere that pushes you, not the empty space.
"A wise man ... proportions his belief to the evidence."
— David Hume, An Enquiry Concerning Human Understanding, Section X, Part I.