Chit Chat
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scientists say they dont know what is at the edge of the universe.in fact they dont know if the universe is still expanding or not.so can anybody tell me the answer to this question.after the big bang everything spread out.now if scientists say that nothing can travel faster than light,surely light would have raced ahead of the rest .so the edge of the universe has to start with a big bundle of light in all directions,even if it is still expanding or not.
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http://www.independent.co.uk/news/world/europe/exploding-bubble-gum-kills-student-1837673.html
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I,m still trying to find the middle of the universe
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You are assuming the universe is a 3D shape as such with edges etc.
It doesn't need a finite 'edge' if it loops back on itself carrying on indefinitely etc. Just google 'shape of the universe' or something to help you raise your conciousness. |
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smart @rse
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yes, there is a big bundle of light out there, left over from the big bang.
It is called the microwave background radiation and the fellas who built the telescope with which to see it got the Nobel prize for it. Well done ! |
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Didn't the telescope turn out to be redundant?
A proportion of the static 'snow' you used to see when tuning between channels on old cathode-ray tellies was due to background microwave radiation left over from the big bang. |
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Light travels at c but space is not subject to the same law, hence it can expand faster than the light travelling through it, so perhaps the ‘edge’ is unattainable to light. As light travels, space continues to outrun it, getting ever farther away from the light wavefront.
Whether it is expanding or not, I think you are trying to picture something that is probably impossible to picture. Light (or invisible light) travels as a wave. It requires matter to be in the way for it to register as 'something' we can experience, otherwise it is nothing. It's as if there's nothing there. Light will not be bouncing off the edge of the universe in any meaningful sense because there's no matter there for it to bounce off and come back to our eyes or detectors. And if there were matter - let's suppose a toaster has drifted to the very edge of the universe - then it could reflect light back. But all you'd see is a toaster in front of you, not a toaster at the edge of the universe. The only 'information' is from the toaster. The problem is, whether through our sense or through machines, we detect things because they behave according to the laws of physics. At the edge, physics stops, so it is impossible to picture or say what the edge of the universe looks like, or is. |
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The problem is you're talking about things which are beyond our understanding atm, the same way science breaks down inside a black hole. I think we'll get there eventually but it will take another Einstein to figure it out.
Has the O/P thought of asking the Chit Chat Detective Agency? I think about 1% of all static on a TV is from the CMBR but I reckon (and it's just a hunch) that the equipment they built was a bit more sensitive than a TV. Penzias and Wilson won the Nobel for finding it but it was found by accident as the CMBR was actually a stray signal they wanted rid of to do their own science. |
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so,based on science,there is also a law that has been proved that,for every action there is an equal and opposite reaction,does this mean that regardless of the universe expanding or not,it will some day reverse and start to contract?and if so what will lead the field when its contracting based on speed?
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It could be that the universe will continue to expand but at an ever slowing rate, yet never actually stopping and reaching 0, like an asymptotic curve.
But if it did reach 0, gravity would probably like to keep working and start to contract space. We know that the universe is cooling as the energy is used to expand, so I guess that during contraction and compression then the universe would heat up again? Would this prove the ingredient to power the melting pot of matter back to a singularity? Would this then repeat the big bang once the singularity is reached, starting the chain reaction of expansion and contraction again? Is this what has been happening and will continue to happen for eternity? Who knows, but after all, energy cannot be created or destroyed so there will always be the energy there to power it, hence if it was possible to happen once it can happen again energy/fuel wise. So many questions. I do apologise.  |
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Signs are pointing to a Universe that is expanding quicker and quicker, we won't have to worry about the big crunch.
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Dark energy - we don't know what it is but it seems to be tearing space apart. ^^^
http://en.wikipedia.org/wiki/Dark_energy |
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And we have a higgs boson,or we are looking for a higgs boson,that will explain how it all started,or tell science to get back to the drawing board .
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What did scientists go back to before the drawing board was invented ?
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my sons papers
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Is dark matter,tiny black holes?
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i was thinking our universe could be a tiny bubble in a bath tub the size of the pacific ocean,with many more bubbles
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Hubble, bubble, toil and Kate Humble
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x = input("What is your name? ")
print ("Hello ", x) |
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i was thinking our universe could be a tiny bubble in a bath tub the size of the pacific ocean,with many more bubbles
You've seen Men in Black too?  |
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Humans will never be able to explain this kind of stuff until we learn how to communicate with space dust.
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