Researchers from the University of Waterloo published a paper that the origin of our universe may not have come from the Big Bang but a 4 dimensional black hole. This one will test your brain to the limits. The idea presented has been kicking around for the last 20 years or so. However, there are a few factors that make this idea interesting and different. Let’s start with the model. 1) The model they constructed is a three dimensional universe floating as a membrane in a “bulk universe” that has four dimensions. 2) So if this four-dimensional universe has four-dimensional stars then we can think about the typical life cycle of a star. A massive star is born then it sheds its layers until the last element where it collapses onto itself and goes supernova (for the sake of the example). 3) The 4-D black hole would have an event horizon just like a 3-D one would. The event horizon is a region around the black hole that if anything travels into it there is no coming back. 4) In a 3-D universe a black hole would be observed as a 2-D surface so in a 4-D universe the black hole would be observed as a 3-D object called hypersphere. 5) When the 4-D star blows apart the left over material would create a 3-D brane around the 3-D black hole or event horizon. Then from there it expands. The idea is an interesting one and it does get one thinking more about how the universe came about and where the singularity comes from. If you are feeling brave then you can read the official publication here arxiv.org/pdf/1309.1487v2.pdf. If you enjoy ideas like this then keep them going by letting NASA progress further on the final frontier. In light of the shutdown this is your chance to take action today and help NASA. penny4nasa.org/take-action
Posted on: Sun, 06 Oct 2013 06:04:12 +0000
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