View Full Version : What if the universe was falling


FNG2k4
03-07-04, 03:55 AM
What if everything we could see was falling in one direction.

As objects fall they get farther and farther away (the space between each object gets farther apearing to stretch) from each other becuase they are accelerating.

Take objects below us they would be falling faster and faster the light produced from them would be getting red shifted due to the fact they are falling faster and faster. The objects above us would be redshifted due the the fact that we are falling faster and faster from them.

This would also mean a band of objects should be actually getting closer or remaining relativly in place. Falling with each other at the same or similiar rate.

FNG2k4
03-07-04, 04:16 AM
I have seen pictures of the universe with the galaxies set up that looks like an hour glass full of sand(galaxies) . This seems to make sense as it would be very hard for an exact plane of stars to exist and the farther horizontally away from us the less propable a star would form there and more extreme the acceleration would be for a small diffrence in angle from that horizontal plane.

http://www.phys.washington.edu/~walta/walta2002/presentations/J-Wilkes_cosmology.pdf

FNG2k4
03-07-04, 04:48 AM
Kirshner says: "It's like a tug-of-war. First we expect the weight of dark matter to slow the universe, but as the universe expands, the dark energy gets the upper hand, so we expect acceleration to take over at later times. If we see that change, from slowing down to acceleration, it will clinch the case.''

http://www.telegraph.co.uk/connected/main.jhtml?xml=/connected/2003/02/21/ecfuniv19.xml

James R
03-07-04, 07:39 AM
FNG2k4:

It is impossible for the universe to be "falling" in the way you describe, since we see galaxies moving away in all directions, not just two. The expansion of the universe is isotropic (same in all directions).