The universe's end is called Big Crush, when the expansion stops and gravity pulls everything back to the centre.. But according to a new research the expansion won't stop, only decrease its speed
Even if the universe is expanding what evidence is there that we are moving further from the Sun?
Yeah, in a couple million years the sun will fucking explode killing planets up to Earth and then receding into a docile light, but that's it, there's no evidence of earth only moving away, and if it is, so should the entire solar system.
What if the big bang is some super large alien kid's High school project?
And this universe is just a case study?
And earth is so small for them that they just summarized about us in just a phrase - A*sholes..
Assuming the universe started with a set amount of energy X, which was the energy that caused all the particles to move and collapse with eachother, and knowing that all elements tend to their most stable element which is the iron, the whole universe will at some point loose it's momentum, with all elements transformed into iron and loosing all forms of energy, freezing to absolute 0 (0K).
The thing is that since we don't yet understand every single force that exists, we don't know if either it will stay just like that, completely frozen or it will begin the opposite effect: the Big Crunch. Which is self explanatory.
This idea is called the Oscillating Universe and/or the Big Bounce and the short answer is yes, this is theoretically entirely possible.
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Presently untestable, which is a problem, but String, M, and Brane theory and quantum mechanics all allow for this. Some of the subsets of these theories not only predict this, but also require it.
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But here's where it gets really interesting: Given the assumption that there was enough energy density for previous iterations to expand and then contract; BUT our current understanding of the universe and it's fate suggests that this will not happen... this would suggest that our universe either is violating thermodynamic energy conservation OR it is leaking energy into a higher dimensional space.
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Edited 9 years ago
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· 9 years ago
It's funny. We as humans always think of time as linear, we're born, we live, we die, that's how it was for everyone in the past, that's how it will be for everyone in the future, so we kind of conform to the idea that everything must have a beginning, a middle and an end. But what if we tried to think a little broader, what if time was not linear and instead went forward and back. The universe just is as it is, no beginning, no end, just a limitless expansion of sound form and vibration... Also the rainbow theory, look that shit up.
I like this sciency side of FS. It's nice to take a break from the stalking guests and the annoying people and unwind with a cup of tea in one hand and a chalkboard in the other.
Sort of... Entropy is a factor that is taken into consideration in thinking about the expansion of the universe and the theoretical "heat death."
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In thermodynamics, entropy is the state of order within a system. In a closed system, it always increases... moving from disorder to a state of order.
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Weather our universe is an open or closed system remains to be seen however.
Yeah, in a couple million years the sun will fucking explode killing planets up to Earth and then receding into a docile light, but that's it, there's no evidence of earth only moving away, and if it is, so should the entire solar system.
And this universe is just a case study?
And earth is so small for them that they just summarized about us in just a phrase - A*sholes..
The thing is that since we don't yet understand every single force that exists, we don't know if either it will stay just like that, completely frozen or it will begin the opposite effect: the Big Crunch. Which is self explanatory.
https://youtu.be/JG6ol841uIs
https://youtu.be/shyI-aQaXD0
.
Presently untestable, which is a problem, but String, M, and Brane theory and quantum mechanics all allow for this. Some of the subsets of these theories not only predict this, but also require it.
.
But here's where it gets really interesting: Given the assumption that there was enough energy density for previous iterations to expand and then contract; BUT our current understanding of the universe and it's fate suggests that this will not happen... this would suggest that our universe either is violating thermodynamic energy conservation OR it is leaking energy into a higher dimensional space.
.
In thermodynamics, entropy is the state of order within a system. In a closed system, it always increases... moving from disorder to a state of order.
.
Weather our universe is an open or closed system remains to be seen however.