Posted on 10/13/2012 11:15:49 AM PDT by Ernest_at_the_Beach
New theory describes faster than light travel, could explain CERN's results
Some of the greatest physicists of the twentieth century, including Albert Einstein, consider the speed of light a sort of universal "speed limit". But over the past couple decades physicists theorized that it should be possible to break this law and get away with it -- to travel faster than the speed of light.
I. CERN Results Potentially Described
One of several possible routes to faster-than-light travel was potentially demonstrated when researchers at CERN, the European physics organization known for maintaining the Large Hadron Collider, sent high-energy particles through the Earth's crust from Geneva, Switzerland to INFN Gran Sasso Laboratory in Italy. In a result that is today highly controversial, the team claimed that the particles were observed travelling in excess of the speed of light.
Now physics theory may finally be catching up. Math researchers at the University of Adelaide -- located in the middle South of Australia -- have developed new formulas to describe the relationship between energy, mass, and velocity (which incorporates length and time) for objects traveling faster than the speed of light. The formulas modify Einstein's Theory of Special Relativity, a fundamental pillar of our understanding of the universe.
Einstein formulated his Theory of Special Relativity in 1905. [Image Source: AP]
Math professor Jim Hill, a co-author of the paper writes, "Questions have since been raised over the experimental results [from CERN] but we were already well on our way to successfully formulating a theory of special relativity, applicable to relative velocities in excess of the speed of light."
He elaborates, "Our approach is a natural and logical extension of the Einstein Theory of Special Relativity, and produces anticipated formulae without the need for imaginary numbers or complicated physics."
The study's other co-author, Dr. Barry Cox, adds, "We are mathematicians, not physicists, so we've approached this problem from a theoretical mathematical perspective... Our paper doesn't try and explain how this could be achieved, just how equations of motion might operate in such regimes."
II. Placating the Critics
The authors obviously recognize the controversy surrounding both experimental and theoretical work regarding challenging the light speed limitation attached to the special theory of relativity. Write the authors in the abstract, "In this highly controversial topic, our particular purpose is not to enter into the merits of existing theories, but rather to present a succinct and carefully reasoned account of a new aspect of Einstein's theory of special relativity, which properly allows for faster than light motion."
Many believe faster-than-light travel may be possible. [Image Source: LucasFilm, Ltd.]
The paper proposes two sets of equations -- one based on an invariant set of "frame transitions", the other based on a "frame transition" with the invariance limitation removed. The authors suspect that if faster than light travel is possible, that the physical behavior of the faster-than-light travelling object is described by one of these equations.
Note, such work is relatively independent from forms of faster-than-light travel that do not violate Einstein's Theory of Special Relativity, such as warping space via a massive energy source.
The paper was published [abstract] in the prestigious peer-reviews journal The Proceedings of the Royal Society A.
Source: RSPA
Thanks for thinking of me E_a_t_B.
The reason it's called the "Special theory of relativity" is that your calculation does not hold true. It's physics, not math.
Basically it has to do with the conception that everything in the universe is in motion, ergo there is no ‘absolute reference frame’. That is to say, anytime we make a measurement of something the value we get is with respect to the contextual frame of reference we’re measuring fromi.e., we ourselves are also moving at some given rate of speed ourselves.
A straightforward example of this would be to think about what the speed of a car driving 55mph looks like from different reference frames. If you’re traveling alongside them at 60mph, then from your perspective they’re traveling -5mph relative to you. But from the perspective of a stationary (~relatively speaking!) person at the side of the road, that car is driving 55mph.
There are some caveats for the speed of light, howeversee here for more: http://en.wikipedia.org/wiki/Special_relativity#Lack_of_an_absolute_reference_frame
Second note ... From the Internet.
Red Shift & Blue Shift A light source moving away from the listener (v is positive) would provide an fL that is less than fS. In the visible light spectrum, this causes a shift toward the red end of the light spectrum, so it is called a red shift. When the light source is moving toward the listener (v is negative), then fL is greater than fS. In the visible light spectrum, this causes a shift toward the high-frequency end of the light spectrum.
Adding to that, two objects parting at more than the speed of light would not be visible to each other.
Basically it has to do with the conception that everything in the universe is in motion, ergo there is no ‘absolute reference frame’. That is to say, anytime we make a measurement of something the value we get is with respect to the contextual frame of reference we’re measuring fromi.e., we’re also moving at some given rate of speed ourselves.
A straightforward example of this would be to think about what the speed of a car driving 55mph looks like from different reference frames. If you’re traveling alongside them at 60mph, then from your perspective they’re traveling -5mph relative to you. But from the perspective of a stationary (~relatively speaking!) person at the side of the road, that car is driving 55mph.
There are some caveats for the speed of light, howeversee here for more: http://en.wikipedia.org/wiki/Special_relativity#Lack_of_an_absolute_reference_frame
And the more spectacular, and useful parts of chemistry, thankyouverymuch.
Does the math on this hold up with the M-M experiments? I guess that's the question I've been trying to ask.
/johnny
No, I don’t believe that is correct.
LMAO!! OH now that is great!!
That’s tight up there with, why do they call it hemorrhoids and not asteroids?
And because of that, it sucks in enormous amounts of funding.
Sure, np. :)
As far whether the math holds up with M-M experiments my short answer is: yes, I think so. The M-M experiments are thought to be a decisive contributing factor that later lead to the development of Special Relativity and the proposed assumption that the speed of light is invariant; it’s been awhile since I’ve taken advanced physics classes though, so I don’t have the specifics or the math at the forefront of my memory.
This might fill in some of the details better for you: http://en.wikipedia.org/wiki/MichelsonMorley_experiment#Special_Relativity
Old news! Captain Kirk has been traveling at warp 8 and above since the 60s!
Thanks for the link.
/johnny
Figuring out what limits light to 186,000 MPS would go a long way to faster-than-light stuff.......
I seem to remember that there was much talk about how the Sound Barrier was an absolute that could not be broken and the aircraft that tried would go out of control and disintegrate. Then, Chuck Yeager flew to Mach 1.07 on 14 October 1947 and the myth was debunked.
Who says we cannot go faster than light? The Light Barrier is an absolute? It is just another obstacle to be broken and a challenge to conventional thinking. We’ve got to think outside the box; say “yes it can be broken” and then figure out how to do it.
AFAIK, SOL is determined by the relative permeability of empty space to the electric field and the magnetic field.
Maxwell type stuff.
It’s predictable from numbers we can measure, but we can’t measure those numbers to any greater/less accuracy than we can measure the SOL.
Sort of like people ask if we live in curved space or flat space.
There is really no difference because straight lines in curved space are the same thing as curved lines in flat space.
Very true. However, in math, things can be calculated that are not possible in physics. For example, 186,200 miles per second times 2 equals 372.4 miles per second ;0)
Dear math major:
Unfortunately, that math is not accurate at speeds on the close order of the velocity of light.
First, a spaceship with mass can NOT move “at the speed of light”. Its mass approaches infinity as it approaches the speed of light. Only massless “things” can go the speed of light.
When it is going as fast as it can, and turns on its lights, it observes the light flying away from it at the speed of light. A “stationary” observer in front of him ALSO would measure the light traveling toward him at c, “the speed of light”. An observer “behind” the ship would ALSO see the beam of light progressing away from him at c. All of this due to the “curvature of space-time”.
Weird, but borne up by many experiments in particle accelerators and particle colliders.
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