Unraveling the Expansion of Our Universe: Seeking Answers | Nautical Thoughts

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The discussion centers on a blog post exploring the expansion of the universe, where the author seeks insights and clarification on the topic. A participant critiques the author's understanding, particularly regarding the Big Bang, labeling it as nonsense and suggesting an alternative resource. The author expresses gratitude for the feedback and discovers the balloon analogy, which effectively encapsulates the concepts discussed in their post. The conversation highlights the importance of accurate explanations in understanding complex cosmological ideas. Overall, the exchange emphasizes the need for clarity in discussions about the universe's expansion.
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[Missed off the title - Please]

Hi guys,

I've created a blog to publish some ideas that I've had and would usually use the posts as a journal to revisit them and try to work them out myself at a later date or just add to them.

The first post I've done is regarding a question I've always battled to answer due to lack of time or looking in the right places and it revolves around the expansion of our universe.

I was wondering if anyone had some spare time if they could have a quick read and see if you can shed some light? There is more than likely a solid explanation however I am yet to find it.

My post can be found here: http://nauticalthoughts.com/expansion-universe/

Thanks
Shane
 
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I skimmed 'til I got to the point where you said "this is the point at which the big bang occurred" or something similar, and stopped. This is nonsense. I suggest you start with the link in my signature.
 
ocset said:
Hi guys,

I've created a blog to publish some ideas that I've had and would usually use the posts as a journal to revisit them and try to work them out myself at a later date or just add to them.

The first post I've done is regarding a question I've always battled to answer due to lack of time or looking in the right places and it revolves around the expansion of our universe.

I was wondering if anyone had some spare time if they could have a quick read and see if you can shed some light? There is more than likely a solid explanation however I am yet to find it.

My post can be found here: http://nauticalthoughts.com/expansion-universe/

Thanks
Shane
phinds said:
I skimmed 'til I got to the point where you said "this is the point at which the big bang occurred" or something similar, and stopped. This is nonsense. I suggest you start with the link in my signature.
Thanks Phinds, reading it now, thanks again for the link.
 
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Just reading through, I am unsure why I have not heard of the balloon analogy before, it seems to sum up pretty much everything I have written about. Thanks for this, its very useful.
 
https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
The formal paper is here. The Rutgers University news has published a story about an image being closely examined at their New Brunswick campus. Here is an excerpt: Computer modeling of the gravitational lens by Keeton and Eid showed that the four visible foreground galaxies causing the gravitational bending couldn’t explain the details of the five-image pattern. Only with the addition of a large, invisible mass, in this case, a dark matter halo, could the model match the observations...
Hi, I’m pretty new to cosmology and I’m trying to get my head around the Big Bang and the potential infinite extent of the universe as a whole. There’s lots of misleading info out there but this forum and a few others have helped me and I just wanted to check I have the right idea. The Big Bang was the creation of space and time. At this instant t=0 space was infinite in size but the scale factor was zero. I’m picturing it (hopefully correctly) like an excel spreadsheet with infinite...
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