Originally Posted by
Dalliance
Neutrinos have rest mass (albeit extraordinarily small) and they were accelerated in one of the various colliders CERN has. Ergo if this is true it invalidates a Einstein's theory.
Though I'm not studying physics I vaguely remember that they are not created and then accelerated but on creation they already have a velocity.
Originally Posted by
OrAclE
And that implies that time always goes forward. We have never established for certain that you can't go back in time, merely we're not capable of it. If I remember some string theory mumbo jumbo I heard a while back, it can be likened that time is like a 4th dimension and, being on the 3rd dimension, we can only progress linearly along the 4th dimension. However, something that exists on the 4th dimension can go backwards and forwards through time, similarly how we can go backwards and forwards within 3 dimensional space. It was posted here a while back, I'll see if I can find the video that explained it.
Even Einstein said that if you move faster than light, you will go back in time.
Speeking of dimensions: There are theories that the neutrinos haven't moved faster than light but took a shorter way by moving through other dimensions. That could explain the result while following the theory of relativity.
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Please provide a source for this information. |
e: I read the part with the dimension travelling neutrinos in an article of the German newspaper FAZ, todays issue (09-24-11). I doubt that's gonna help anyone. I'll search for some english articles with the same topic.
e2:
Heinrich Paes, a physicist at Dortmund University, has developed another theory that could explain the result. The neutrinos may be taking a shortcut through space-time, by travelling from Cern to Gran Sasso through extra dimensions. "That can make it look like a particle has gone faster than the speed of light when it hasn't," he said.
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source
I can't find any more expanation on what his theory is based on. The paper
"Neutrino Timetravel" sounds much like what Päs was saying though they are talking of theoretical "
sterile neutrinos". I don't know if Päs was talking about that.
Last edited by psycore; Sep 25, 2011 at 12:56 AM.