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(actually there are 4 dimensions : 3 for the space, and one for time),
Originally posted by Yazman
That has NEVER been proven, and is a baseless theory. The fact is, if a dimension exists, it cannot exist in other-dimensional worlds.Calling time a dimension would be like calling gravity a dimension. Also, time has no spacial bearing on anything. It is NOT a dimension.
Einstein showed us that all matter curves space, right? Well, because it's so hard to visualize this curvature (because space-time occupies the accursed 4th dimension with width, height, length, and time) scientists have come up with as easy way to think about it.
We also knew that photons are affected by gravitational fields not because photons have mass, but because gravitational fields (in particular, strong gravitational fields) change the shape of space-time. The photons are responding to the curvature in space-time, not directly to the gravitational field. Space-time is the four-dimensional "space" we live in -- there are 3 spatial dimensions (think of X,Y, and Z) and one time dimension.
Let us relate this to light traveling near a star. The strong gravitational field of the star changes the paths of light rays in space-time from what they would have been had the star not been present. Specifically, the path of the light is bent slightly inward toward the surface of the star.
Most black holes are depicted a flat circular objects
Originally posted by Vanguard
What science book is this - 2d astrophysics for beginners?
I will make a note here: What we see as time might be more of a fractal version of the fourth dimension.
Originally posted by DarkSide
how can all the atoms of one star be shrinked to fit in an area smaller than 1 atom itself?does the space between the neutrons/protons and the electrons get smaller?
Originally posted by xxKrisxx
The "empty space" of an atom is comparatively enormous to it's components...so I hear
[Edited on 24-5-2004 by xxKrisxx]