The Donut Universe (by Robby Gurdan)

How big is the universe?

To find out how big the universe would be, we can use the observation of Hubble, that red-shift changes proportional with the distance. If it would be possible to create a telescope, that would be able to scan a distance bigger then half of the extent of the universe, we should be able to look at the same galaxy or star by turning our telescope about 180 degrees in both directions. The red shift would be different though according to the placing of the object relative to the viewer. In our example below star Nr.1 would be only very slightly redshifted when looked at from one direction, but deeply (because of much bigger distance) when looked at from the opposite direction. Due to the fact that the amout of the redshift lets us calculate the distance, all we have to do is to add both distances of the same star to get the size of the universe. If we would have a telescope that would cover the whole universe, we could see outselves scanning us from behind.

Looking at the same star from the opposite direction, would cause its red shift to change, dependant on the amount of space in between the viewer ans the viewed object

By the way the origin of our universe is thought to be the so called big bang, a huge explosion.
If we remember a film of one of the uncountable explosions of atomic bombs, the remarkable fact is that it always has the same form….a mushroom formed by a pillar and an expanding rotating torus…. Isn´t this a funny coincidence ….

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