- Dec 16, 2000
- 4,354
- 0
- 0
Scientist break the speed of light....
- Thread starter Ktulu
- Start date
Technically, if we are to really explore space, we would have to find a way to go faster then the speed of light, otherwise we would be taking 100+years just to get to the nearest neighbor system.
It's debatable whether or not it can really be done.
http://en.wikipedia.org/wiki/Faster-than-light
It's debatable whether or not it can really be done.
http://en.wikipedia.org/wiki/Faster-than-light
If this is true its quite a feat. i do have a question though. Wizboy mentioned that if we want to explore space we need to find a way to travel faster than light and i can't agree more. But is teleportation a form of speed? And if so how fast is it hypothetically? From China to NY it would be next to instant i'd imagine but from earth to pluto would it be the same? In comparison china is closer to NY than pluto is to earth...
My layman's interpretation is that this experiment is inconclusive since they are observing subatomic particles as part of the experiment, and thus the observe could be affecting the outcome. No, I didn't take physics in college, and yes, I know that it shows.
Daily Mail IIRC is a UK newspaper. While some of their content is questionable, I do not beleive they post false or parody stories.
Except "Teleportation" would be the speed of light, as you can't more particles that have mass faster than the speed of light. Photons do not have mass.
- Dec 16, 2000
- 4,354
- 0
- 0
http://news.zdnet.co.uk/commun...000085,39288577,00.htm
Well here's another article on the story. You guys can make what you want of it.
Well here's another article on the story. You guys can make what you want of it.
Modelworks
Lifer
- Feb 22, 2007
- 16,240
- 7
- 76
God must be really angry right now.
He goes and makes the laws of physics and these damn human creations keep breaking it.
He goes and makes the laws of physics and these damn human creations keep breaking it.
BrokenVisage
Lifer
- Jan 29, 2005
- 24,771
- 14
- 81
It's a nice feat but they didn't send MATTER faster than light, that's the golden goose egg these stories never claim to find.
This isn't anything new. There have been many instances of superlumina (faster than light) phase velocities. It's the group velocity that is yet to break the barrier.
From Wikipedia:
More information and a good read:
http://en.wikipedia.org/wiki/Superluminal
From Wikipedia:
Link: http://en.wikipedia.org/wiki/Phase_velocity
More information and a good read:
http://en.wikipedia.org/wiki/Superluminal
BrokenVisage
Lifer
- Jan 29, 2005
- 24,771
- 14
- 81
You can't think in terms of "speed" when talking about intergalactic space travel though, these places are simply too far apart and the fuel limitations would always come into play in some way, shape or form. So the trick is not traveling from point A to point B, the trick would be bending space so that point B comes toward you at point A.
Of course someone will quote this post and spout something like "Durrrr you could fabricate any kind of way to teleport around the universe, this is just Science Fiction." Which is a fair assessment, however ANY form of transport between stars would be considered Science Fiction when compared to the level of technology we're currently at, so this is simply my take on how it could be achieved. The trick, obviously, would be building a device that has the power and ability to bend space-time, not to mention a craft that can use it while protecting it's passengers.
Quantum Tunneling is something that is completely plausible, it's simply a matter of time before we harness it. I've been told about 20 years.
They've already succeeded in sending photons at faster than light speeds (If you can call quantum tunneling "traveling", because you're actually not traveling through regular space)
They've already succeeded in sending photons at faster than light speeds (If you can call quantum tunneling "traveling", because you're actually not traveling through regular space)
I have never read a legitimate source claiming that traveling faster than light would cause time to travel backwards.
MrDudeMan
Lifer
- Jan 15, 2001
- 15,069
- 94
- 91
Photons most certainly do have mass. They don't have rest mass, but that is irrelevant since they are never at rest. Their intrinsic properties such as mass and spin are determined by their gauge symmetry, meaning they do in fact exhibit the characteristics of a particle with mass.
Also, the light from the sun has a weight of roughly 2 pounds per square mile on the surface of the earth. Yes, this is a result of the momentum, but also of the non-rest mass.
silverpig
Lifer
- Jul 29, 2001
- 27,703
- 12
- 81
I hate how media stories do this. This type of tunneling has happened in experiment several times before. What basically happens is this:
Let's say a photon looks like a little fuzzy wave packet like so:
..::||::..
You set up a detector to measure this photon and see that it detects the photon most often when the fat middle part hits, but it occasionally detects the photon on the leading edge, or the trailing edge where the photon is thinner. You can think of the width of the photon I drew as the probability that the photon will be detected as that part of it crosses the detector.
What this experiment (and pretty much all others like it) do is to increase the phase velocity of the photon (the waves INSIDE it), thus shifting the photon around a bit like so:
...:::||:.
Now the meaty part comes earlier, and the photon is more likely to be detected earlier, however the leading and trailing edges still line up.
Let's say a photon looks like a little fuzzy wave packet like so:
..::||::..
You set up a detector to measure this photon and see that it detects the photon most often when the fat middle part hits, but it occasionally detects the photon on the leading edge, or the trailing edge where the photon is thinner. You can think of the width of the photon I drew as the probability that the photon will be detected as that part of it crosses the detector.
What this experiment (and pretty much all others like it) do is to increase the phase velocity of the photon (the waves INSIDE it), thus shifting the photon around a bit like so:
...:::||:.
Now the meaty part comes earlier, and the photon is more likely to be detected earlier, however the leading and trailing edges still line up.
I just don't see how it would be possible. In order to "travel" faster than light you have to go somewhere, and then come back to your starting point to calculate the time difference.
The perception is that i went so fast from X to Y that when i was at X i could see myself at Y. The problem is you can't interact with yourself at Y from X because you are seeing the past.
I think a major issue is that everyone takes Einstein's theories, as gospel. He was a smart smart man, and smarter than i could ever be, BUT even the smartest people are wrong every once in awhile.
silverpig
Lifer
- Jul 29, 2001
- 27,703
- 12
- 81
It's different than what you would expect. I don't think it's about being in the past as much as it is observing the past.
I'm on Earth in January, I make a sign and hold it up to the sky. I then get in my rocket ship and travel faster than light until February at which time I stop and look back at earth, seeing myself in January holding up the sign.
alkemyst
No Lifer
- Feb 13, 2001
- 83,769
- 19
- 81
Einstein really did not say faster than light travel is impossible. He said it was impossible because you cannot manipulate time.
The E=MC^2 equation can show faster than light travel when you let time move.
I am going off memory here a bit so I may be confusing something.
The E=MC^2 equation can show faster than light travel when you let time move.
I am going off memory here a bit so I may be confusing something.
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