According to modern physics, the speed of light is a fundamental,
unbreakable limit. Yet two physicists are now claiming
they have done just that, and propelled a stream of photons faster
than the speed of light. Günter Nimtz and Alfons
Stahlhofen of the University of Koblenz, Germany, have been
researching a phenomenon known as quantum tunnelling. Two prisms are placed together. When a light is shown through the prisms, a detector picks up the light and records information about the photon. However, when the two prisms are separated, Nimtz and Stahlhofen discovered that photons would occasionally "tunnel" between the prisms -- arriving at the detector sooner than should theoretically be possible.
The two scientists
say they have now tunneled photons "instantaneously" across
a distance of up to one meter. Their conclusion, stated in a
recent paper, is that
the speed limit of special relativity has been violated. Dr. Nimtz claims quantum tunneling is a little understood
process that is "the most important" aspect of
quantum physics, one that may be responsible for the
computational efficiency of the human brain.Being able to
violate the speed of light would undermine our current understanding of
space and time, and lead to a number of bizarre effects, such as
being able to travel backwards in time.However, Dr. Aephraim
Steinberg, from the University of Toronto, disagrees with the
findings. He says its all just a matter of interpretation.
The "wave packet" of the virtual photon exceeded the speed
of light, but no actual information was transmitted that fast.
Therefore, according to Steinberg, Einstein's cosmic speed limit
Nimtz and Stahlhofen may be the first scientists to create a macro-scale experiment.
quote: the article is misleading like most articles on DT
quote: they have now tunneled photons "instantaneously" across a distance of up to one meter.
quote: A blind person does not need to understand sight in order to figure out where objects are and where they are moving, as this can be deduced by their other senses. In a universe of blind people we would eventually be able to deduce the existence of light through its effects, such as warming up our skin, giving energy to plants, etc.
quote: I agree as well. I think our science is primarily limited only to the things that can be observed by or derived from our senses, and as such is almost absolutely flawed.
quote: We know the math doesn't work for a number of things, we need to quit making stuff up or fudging numbers and start recognizing that it's probably something we can't derive from sense.
quote: Kind of like Ultraviolet and Infrared light, until we investigated "What light is" and discovered it's wavelength form, it did not exist nor did the entire realm of possibilities that it holds exist, because it did not exist within our senses. We lucked into those two, only because it derived from something within our senses.
quote: Atoms. All of atomic theory is derivative of sense based questions which are being followed to conclusions. "I see this, what is it made of?".
quote: half the world would be unemployed overnight
quote: OK, I've always wondered this and need some of you really smart people to explain to me why it wouldn't work.
quote: If the string breaks, the stone does not remain orbiting you in a circular path, it goes off in a straight line.
quote: So, looking up in the sky, you'd see within a day a pole wrapping around the Earth, yes?
quote: Finally, what E = mc² shows is that mass and energy are the same thing
quote: Photons have momentum, but no mass (hence the viability of solar sails). And photons can carry energy, also in the absence of mass.
quote: "If photons don't have mass then how can a strong gravity like black hole pull photons ?So, I think photons have a mass but it is negligible
quote: zero * infinity still equals zero
quote: In this case, the effect (the msg about the pulse) precedes the cause (the pulse itself). Thats equivalent to time travel.
quote: Superluminal travel implies causality violation for all observers. It's not just a phenomenom of your point of view.
quote: If you can travel faster than light, then not only can you "see" into the past, but you can send information there as well. Sending a note to your mother to request she not conceive you is not only unwise, it violates causuality-- the principle that "cause" always precedes "effect". And that is the real reason for the speed-of-light limitation.
quote: How could the time go backwards
quote: Light Speed too slow?Yes. We're gonna have to go right to, Ludicrous Speed.
quote: What the hell am I looking at? When does this happen in the movie?Now. You're looking at now sir. Everything that happens now, is happening now.What happened to then?We passed then.When?Just now. We're at now, now.Go back to then!When?Now.Now?Now!I can't.Why?We missed it.When?Just now.When will then be now?Soon.
quote: "Okay, there's Murray.....and Fred.....Tom......Johnnie......no, wait! That's not Johnnie! That's Eddie!! Hey!!.......
quote: I have been wrong before, it has happened at once :-)
quote: Even if something travels faster than light, how can this let us look into the past?
quote: Being able to violate the speed of light would undermine our current understanding of space and time, and lead to a number of bizarre effects, such as being able to travel backwards in time.
quote: Dr. Steve Schaefer, Ph.D. Princeton University (Physics), "Calculates if X = 4.3 light-years, then T = 3.6 years. Dozens of stars could be reached in five to six years. In fact, a traveler could even go the Andromeda galaxy (2,000,000 light years) in under 29 years (Ship Time in Years) if a constant acceleration could be maintained." Also see Dr. Carlos I. Calle, PhD, NASA senior research scientist, below on page.