A model of space time =is the globle sitting on sheet being warped what hapens to north side of globe?

Question

The mass pushes down on the sheet from south pole,the north pole of the globe is not sitting on anything what happened to its space time fabric distortion?

Answer 1

Your confusion is mostly due to the fact that the 2-D model of spacetime is grossly inaccurate. It is only meant to illustrate the fact that matter warps spacetime (4-dimensional), since it is just not possible to illustrate a 4-D or even a 3-D model.

Basically any matter can affect spacetime by bending or curving the spacetime around it, and in the example of a globe, the bending occurs all around it, not just at the South pole.

Answer 2

A major problem with trying to explain 4D space/time in 2D (the rubber sheet) is that the explanation is not perfect. That's the nature of any model, it is not a perfect representation of the real thing.

The answer is, nothing happens to the north pole, the only part of the globe that counts in this model, is the part that touches the rubber sheet.

The rubber sheet model, used to show the curvature of space under mass, is for all intents and purposes a two dimensional model (true there is some thickness, but it is inconsequential). That is, it is measured by only width and length, the two dimensions. So the only part of the globe lying within those two dimensions is the south pole itself.

This was a good question because it shows you are thinking the model through. One of the basic tenets of good science is to always validate your model.

Answer 3

For a really good brain exersize, try to imagine the sheet you speak off as being 3-dimentional - like a thick fluid - warped and deformed 360 degrees in every direction from the suspended globe. Only then will you have a much more correct conception.

Answer 4

What you have seen is a representation of how the force of gravity changes acceleration values about a solar body. Space, itself, is empty, so the representation you have seen is not the changing of zero. It represents how the force of gravity is able cause difference of acceleration all about a sphere.

Another way to think of what you have seen, is to consider the gravitational field of our planet as an extension of mass in form of energy. The energy continually moves outward at the speed of light, and in order to keep this energy existent there must the continual expenditure of 0.00444 kg. mass per second. Our sun expends 665 lbs./sec.

So, what happens to the north of a sphere, or at any other location about it, is all the same when it comes to the force of gravity.

Answer 5

What ARE you talking about? Hope someone else can answer. I have no clue. Way over my head. LOL