Wednesday, May 4, 2016
Here is the presentation on The Big Bang by Drew Silverberg, Christopher Mitchell, and Tejash Patel. https://livemissouristate-my.sharepoint.com/personal/tap1996_live_missouristate_edu/_layouts/15/guestaccess.aspx?guestaccesstoken=SBuDYz3fy%2biR2vhUsH9xJ%2bMBMOfT0ONVeM621XYjZOs%3d&docid=0801b1a05e7394e46b8c98c00c53142a3
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I'm confused as to what is meant by the universe's curvature. How would we detect if the universe is curved or flat? If the universe were curved what would we see differently?
ReplyDeleteThat's a good question. The WMAP probe can tell us the geometry of the universe. Going back to the cosmic microwave radiation, if we look at the "spots" in the radiation we can determine the shape of the universe. So if the brightest spots are about one degree across it means the universe is flat, and this is what we see. If the radiation spots were smaller or larger then one degree across the universe would be open or closed off. In an open universe the shape would be like an arch way and this universe would have no bounds and expands for ever. But on the other hand a closed universe is like a sphere and expansion would turn into contraction. This is more evidence that the universe is not a sphere because galaxies are moving away and not contracting. So the universe would be different in a closed universe because there would be this contraction, or as it was theorized a big crunch. Since the universe is flat this big crunch will not occur.
DeleteWhen was Obler’s Paradox disproved? It makes sense to me that the sky isn’t uniform and that it does indeed change, so between what years was this Paradox viable? Good job Guys!!
ReplyDeleteOlber's paradox was an argument AGAINST the idea of an infinite universe. I believe you have it the other way around, and I can see how that can be confusing. Olber's paradox is strong evidence FOR the Big Bang, and that the universe is in fact changing.
Deletewhen was the eternal inflation theory founded and what are your thoughts on this theory.
ReplyDeleteThe first example of the theory was presented in 1983 by Paul Steinhardt. And as far as my opinion goes, I have no clue. The fact that all of these are called "theories" means we cant necessarily say that they are wrong, (unless of course evidence is found to disprove it). In my research, I did not find any information to disprove the eternal inflation theory, but because the Big Bang theory is more accepted among scientists (whom I must defer to due to lack of knowledge in the subject) I would say that the Big Bang is a better theory.
DeleteIf a singularity is thought to exist at the core of a black hole, is it possible for other universes to exist withing our own galaxy?
ReplyDeleteThis is just a meta- science theory. A singularity is kind of a broad term where the conditions of a point defy our current understanding of physics. So no probably no, but there is no way to know for sure.
DeleteBesides the Inflation Theory, is there another theory that suggests the expansion phase in the early stages of our universe?
ReplyDeleteThere are no other theories that can replace the Inflation theory or explain the expansion phase.
DeleteWhen was the inflation theory first approved?
ReplyDeleteThe Inflation theory was developed in the 1980's.Three of the founders of the theory were recognized in 2002. They were Alan Guth, Andrei Linde, and Paul Steinhardt. The theory answered several questions including why the universe is flat, why the CMB radiation is evenly dispersed, and why the universe is the same in every direction.
DeleteWhat is it meant by a flat universe?
ReplyDeleteWhen we talk about the flatness of the universe it means there is no apparent curvature. So the universe is flat in all directions of space-time.
DeleteHow do they know that during the particle period the universe was like our sun?
ReplyDeleteWe can create models of the big bang and we understand the physics of the universe at this point in the bang, so we can use mathematics to uncover what was occurring.
DeleteWhen thinking about the Big Bang. Do you think it would be possible for another Big Bang to happen?
ReplyDeleteAdam S.
If the Oscillating Universe Theory is correct, there could possibly be a Big Crunch followed by another Big Bang.
ReplyDelete