I was wondering if anyone looked at the expanding model of the universe in terms of a vacuum pulling the universe out rather than an explosion pushing the universe outwards? Or explain why this model would not work?
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could you precise "pulling the universe" ? do you mean that the total size remains constant with a decreasing c ? – Nov 13 '15 at 15:07
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2Vacuums don't pull. What might appear to be a pull is the result a pressure gradient. It's always a "push". – garyp Nov 13 '15 at 15:17
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The second question (...worthy of thought?) seems to be an opinion-based question, so I'm removing that. I think the rest of the question is okay. – Kyle Kanos Nov 13 '15 at 15:41
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The universe isn't expanding outwards from a point. There is no vacuum outside the universe. In fact the universe has no outside at all. – John Rennie Nov 13 '15 at 16:26
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you cannot look at the expansion of the universe -- or say the big bang -- as being comparable to an explosion. Every point in space drifts away from every other point in space. This is different to an explosion, where you have a real center. The latter aspect is missing -- or say different -- when you look at the expansion of the universe. Here you don't have a center. I think, this is an aspect you should keep in mind, when asking this question. Hence, the vacuum pulling inside would also require a center towards it is pulling, in my opinion.
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Markus
Markus
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I was wondering if anyone looked at the expanding model of the universe in terms of a vacuum pulling the universe out rather than an explosion pushing the universe outwards? Or explain why this model would not work?
In the classical Newtonian mechanics the vacuum is simply a medium that does not oppose any resistance. In order to travel through vacuum a material object (a celestial body, for example) needs an initial speed or a force acting on it.
The apparent suction of vacuum is simply an illusion.
Energizer777
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