Time travel impossible, huh? Tell that to Dr. Brown.

Time travel proven impossible by scientists

Time travel impossible, huh? Tell that to Dr. Brown.

Time travel impossible, huh? Tell that to Dr. Brown.

A team of Hong Kong scientists have proven that nothing can travel faster than the speed of light in vacuum, at the same time crushing a dream concluding that time travel is simply impossible.

Time travel has been a central theme for science fiction for many years, moving minds and imagination to all sort of places, times and possibilities. Scientists lead by Du Shengwang  from Hong Kong University of Science and Technology have experimentally shown, however, that time travel will forever remain in the realm of SciFi, as they’ve proven that even a  single photon, or unit of light still obeys Einstein’s “traffic laws of the Universe.”

“Einstein claimed that the speed of light was the traffic law of the universe or in simple language, nothing can travel faster than light,” the university said on its website.

Some years ago, an enchanting possibility of time travel emerged when a study suggested that superluminal — or faster-than-light — propagation of optical pulses in some specific medium was obtainable. After some time, the whole matter was found to be a simple visual effect, but hope still remained.

Researchers, have now proven that even a single photon, the fundamental quanta of light, can’t travel faster than the maximum speed.

“The results add to our understanding of how a single photon moves. They also confirm the upper bound on how fast information travels with light,” says Professor Du.

“By showing that single photons cannot travel faster than the speed of light, our results bring a closure to the debate on the true speed of information carried by a single photon. Our findings will also likely have potential applications by giving scientists a better picture on the transmission of quantum information.”

In a novel experiment, the researchers had to separate singular photons for their point to be made across. This required measuring what is known as an optical precursor – the waves that precede photons in a material. By passing pairs of photons through a vapour of atoms held at just 100 millionths of a degree above absolute zero – the Universe’s ultimate low-temperature limit – the team showed that the optical precursor and the photon that caused it are indeed limited to the vacuum speed of light.

The study was published in the U.S. peer-reviewed scientific journal Physical Review Letters.

9 thoughts on “Time travel proven impossible by scientists

  1. Pingback: Sorry Doc, Scientists Say Time Travel Is Impossible – PC Magazine | Tucson AZ News and Weather

  2. Andrei Cristescu

    What proof is this? They have just confirmed that light particles (photons) travel at the speed of light. Wow… and they call themselves scientists? :))

  3. Holly McCann

    Ummm but time travel has been proven. Why do you think clocks on satellites are slower than on Earth, because they’re actually traveling forward in time. Doesn’t matter that it’s only by millionths of a second; it’s still time travel.

  4. Choata

    There are plenty of other theories for time travel.
    They’re just using that headline to catch people’s attention.
    Look at the bright side: now we’ve narrowed down the possibilities!

  5. Aviugad

    Well what about bending spacetime itself to manipulate time, With a good viable energy source time travel will be still possible

  6. Aaronp2k

    actually due to the lack of gravity which of course means less friction, the mechanical clockwork inside the clocks will differ than when it is on earth, hence why they move slower. For a digital clock maybe this theory could be appropriate, but we would then also need to assume that electrons react differently in space than they do on earth which may also create inaccuracies in time.

  7. Rodney Kawecki

    Traveling backwards or forwards is not at all possible not because infinite mass at light speed …but because a spacecraft cant travel fast enough theoretically. Infinite mass is measured based on a body in motion under the influence of a gravity force affecting the objects kinetic energy but if you look at the theory on kinetic energy you’ll discover that an objects mass measurers Mo (E=Moc2) weightlessness in space Mo is zero mass that kinetic energy can not increase if the objects mass equals zero. This is in the books so …. when Einstein put the limit on space travel with his equation E=Mc2 .. adding time into the equation made him think he could turn planets around backwards is what is needed for time travel. And that is almost impossible. But if a ship’s mass converts to zero in space .. than it can not increase in kinetic energy…answer : Right? Review F=mv2 is more so probable than using C2 for space travel where ‘e’ becomes propulsion valuable measurement for velocity. Read’ Albert Einstein’s Universe’ by Rodney Kawecki this author…

  8. Rodney Kawecki

    Einstein illustrates there is a material speed limit but – I think in space travel its how much propulsion force that pushes a vessel to its directable velocity its not whether or not a matter particle travels at a specific speed. Pushing something is not the same as how fat something travels..

  9. Michael Schade

    There is another argument for why time travel isn't possible and it is very simple.
    If it was possible, given human nature, the whole timeline would be flooded by people trying to change every second of it and everything around us and history would be changing constantly untill the point where timetravel wouldn't be invented ever again.
    Noooo you would say, regulations and time police would enforce it and keep it safe…..Really?

    There is though, one method of travelling, in one direction only and that is forward. Given technology can suspend a humans aging or make it very slow, a human can travel forward in time by being suspended like that, but never back again.
    The advantage of that could be something with being cured (hopefully) in the future or some special kinda function, but probably only for the very wealthy since upkeeps might be high.
    The effect can also be achieved by travelling near the speed of light.

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