Prospect of Faster-Than-Light Travel Could Open New World

The flat-earth comparison is questionable, since some ancient Westerners understood the Earth to be round; Eratosthenes famously figured out its approximate circumference.

As for the backward time travel, I've seen it in fiction but am not sure that it's yet more than speculation. If these new findings hold, we might also speculate that these neutrinos are without mass--or is even a "negative mass" possible?

Well, OK so neutrinos can go back in time. They can also pass through solid rock as if it wasn't there. I don't see humans ever being able to do either.

The time what we know about is only an reference and relasationship between the sun and earth,and the logic in general is a combination from the begin and end of universum,so the time by itself is a relative element and the real time is in the begining of all existence ,so how much we know it about?-so them in what kind of time or time-back we will be go to travel?- there is a time for materia and the other time for antimateria ,two time are in muvements on the same time but not together,one is a plus-time and the other an minus-time and between one and two is the cero like macro and micro.the only difernce is that time is a life for ever in plus or minus,also the first big-bang can tell us where direction run the time ,or where is the time-wall........sory my enlish who read these

If anyone here thinks that this will some day allow us to travel faster than light, think again.

It takes 1 trillion eVolts to send a proton .99% the speed of light. If you were to scale this energy up to something more familiar, let's say a 1 gram ball bearing, it would require the total energy that would be released by detonating 6000 Hiroshima size nuclear weapons (equivalent to 78 megatons of dynamite).

So to send something equivalent to the mass of the space shuttle to near the speed of light: 15,112 terratons of TNT. (Nearly the equivalent of all the energy produced by the sun in a second).

In the end, nothing changes. The amount of energy required is insurmountable.

I can see it now, go back in time to change the future---------------------- most likely screw it up worse than the first time!

If Einstein's theory about nothing going faster than light is incorrect then it stands to reason that the conclusion that an object traveling faster than light goes backwards in time is also incorrect. If in fact they did travel back in time then they would have received the neutrinos before they actually sent them.

One wonders not why a physics naive person would think about "new possibilities" when they haven't even checked the validity of the claims in the paper of the OPERA collaboration (which are very, very weak, by the way).

OTOH, a physics educated person who did check those claims (and found them to be utterly lacking), will wonder why anyone would take them seriously, though.

You know it's nonsense when it comes from Yahoo's "contributor network".

That is Fermi you Yahoo pseudo-social-scientists. As in Enrico Fermi.

"Did you know that anything that goes faster than the speed of light also goes backward in time?" The point of this news release from Cern is that Neutrinos do NOT appear to be going backward in time but DO appear to be traveling faster than light. If they were traveling backward in time they would be arriving at the target before they'd left the gun. That's not what appears to be happening. They are arriving on target AFTER leaving the gun but 60 billionth's of a second BEFORE a photon would making the same trip. That's why the researchers are being so careful. If this checks out it will revolutionize EVERYTHING we think we know about how things work.

"For years it's been said backwards time travel was not possible because of the fact that it is physically impossible to go faster than the speed of light. Imagine the possibilities if it was discovered that this theory is not true"
--Of course there would be no reason to believe that is true either if the theory is invalidated

Fermi with the letter M, not N

Even if it were practically possible,
When and where is everybody else ???

Unless the whole universe is trying to avoid us,
For one reason or another ....

Well considering the amount of energy the Cern Reactor uses to just funnel neutrinos that go back only 60 billionths of a second. I couldnt imagine how much power you would need to send anything larger back in time a large amount of time considering the fact we havent even moved any considerable mass up to the speed of light yet.

Fernilab - really??? Is yahoo paying apathetic bloggers to write for the science section? Aside from no content, there obviously was no editing involved here. Fermi rolls in his grave.

So this means if a politician can go faster than light they will take back their lies and give back what they stole from us? It's a silly idea but had to post this.

Virgin Atlantic starts signing in.

Too bad it would take us like three thousand years to figure out how to technologically harness such knowledge. We'll likely have put ourselves back into the stone age long before that.

If any of this turns out to be remotely true, it's a given there are ET's visiting here.

Can somebody explain why traveling faster than the speed of light will go back in time?