As humans it is apparent that we naturally seek to learn more about the universe surrounding us. At Penn State University scientists have been studying the earliest era of the universe. From their data they were able to make a model which shows that the large objects that are observed in the universe actually from fundamental fluctuations in the essential quantum nature of “space-time.” The scientists were able to make this model due to their analyses of quantum physics. Their analysis of quantum physics goes the farthest back in time, to date. This model actually disproves Einstein’s general theory of relativity because it shows that the universe was once so compressed that the densities were unimaginable and did not work the same way that Einstein had believed. Instead, the early universe was ruled by a fundamental theory that had strange dynamics of quantum mechanics. No scientist has yet been able to detect the early eras of the universe; however cosmic radiation discovered an era in the universe when it was three hundred and eight thousand years old. Although the Universe was quickly super-compressed after that time period. Observations from the cosmic radiation also tell the scientists that the universe was uniform in its consistency after its inflation. The inflammatory model that the scientist created shows that the early universe and space time are on a smooth continuum. Ivan Agullo, who worked on the research, states that this model is insufficient, “The inflationary paradigm enjoys remarkable success in explaining the observed features of the cosmic background radiation. Yet this model is incomplete. It retains the idea that the universe burst forth from nothing in a Big Bang, which naturally results from the inability of the paradigm’s general-relativity physics to describe extreme quantum-mechanical situations.” To make this model successful the scientists believe that a quantum theory of gravity is needed so that the physics close to the origin of the universe is found. This group of scientists also proposed an updated theory of the Big Bang called the Big Bounce. The Big Bounce is the theory that the universe evolved from nothing but a super- compressed mass of matter. In reference to this model, Abhay Ashtekar, the senior author of the paper, published in the journal Physical Review Letters, stated, “In human terms, it is like taking a snapshot of a baby right at birth and then being able to project from it an accurate profile of how that person will be at age 100.” These two theories make for a very exciting future because they will be tested against one another in the future discoveries.
I found this article to be interesting however quite confusing. I am not a renowned scholar on quantum physics or physics in general, so trying to understand all of these discoveries was quite confusing. This article shows how amazing science is. Due to science we are very close to discovering the beginning of the universe. It is simply mind boggling.
http://www.redorbit.com/news/space/1112739083/early-universe-new-insights-112912/
posted for C. Weiss
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2 comments:
I thought Caroline did a very good job in summarizing the article. She used a lot of detail, which made the complicated topic a little easier to understand. She also used a lot of support, including professors to back up the theory presented. Caroline also did a good job in stating her opinion about the article. She explained her own opinions about the original article. Lastly, I thought Caroline thoroughly explained the complicated quantum and physics aspect of this theory proposed by Penn State University scientists. She made it easier for me to understand the more difficult parts.
I thought Caroline could have improved her review by separating it into paragraphs. It was confusing as to what she was talking about when it was all jammed into one big paragraph. I also thought Caroline could have improved her review by including how she thought this discovery would impact the future and past studies done in science revolving the topic of the Big Bang and the previous universe model. I understand that it is a difficult topic, but I am sure she has an opinion on it.
Lastly, the most interesting part of this study was the fact that this new theory disproved Einstein’s original theory about the earth. I was really surprised by this because I feel like we have always learned that Einstein was always right and this is very interesting to learn. This also shows how much our science has improved since those times.
One thing Caroline did well was setting up the review with a general statement to keep in mind while reading the rest of the article. I also thought she gave a thorough explanation on how the universe was created. And She used lots of science vocabulary. One thing I think Caroline could have done better was rephrase this statement: “From their data they were able to make a model which shows that the large objects that are observed in the universe actually from fundamental fluctuations in the essential quantum nature of “space-time.”” It was a little hard for me to understand the first time I read it, which is not good considering it tells the reader what’s going on in the article. Also she could have gave a brief description of what quantum physics is.I learned that this finding disproves Einstein’s theory of relativity. This is really interesting considering Einstein is the poster boy for physics.
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