Space–time cloak could hide events

Space–time cloak could hide events

www.nature.com

The ideal space–time cloak — the theory behind which is published in the Journal of Optics today1 — would be an upgraded version of the 'invisibility cloak' that was first proposed in 20062,3 and has since been built for some wavelengths of light. Such standard invisibility cloaks are made from metamaterials — substances with a complex internal structure that allows them to channel light around objects like water flowing around a rock in a river. A distant observer perceives the light as if it has travelled in a straight line without ever hitting an intervening object.

(visit the link for the full news article)

Cloaking space and time would trump the "Invisible Man." They are not talking about 100 years down the road, only this next year. Cloaking time and space in nanoseconds to begin with, and progressing from there. The initial breakthrough might assist in the elusive quantum computing technology.



www.nature.com
(visit the link for the full news article)

Makes you wonder how much they're already using this technology, and also what other advanced technologies they have up their sleeve.

"You could imagine a burglar using a space–time cloak to create an invisible corridor leading to a safe," says McCall. With the cloak turned on, the burglar could run through this corridor, open the safe, steal the contents, shut the safe and escape, while any security camera trained on the safe would just show a continuous image of a locked door at every point in time, explains McCall. "The dastardly event would have been edited from history," he says. By contrast, putting a conventional invisibility cloak over the safe would hide the object from observers — but a security camera would spot that the once-visible safe had been hidden. The rest of the snippet-TaDa

www.nature.com...

Originally posted by Aelfrede
Makes you wonder how much they're already using this technology, and also what other advanced technologies they have up their sleeve.

I would imagine this is actually only 1% of the cloaking science that's been going on. A few weeks ago I read about a fiber that bends light around it.

hey harry, nice post

The article then goes on to say:

"There are fundamental problems that prevent it from being constructed. The theoretical calculations work only in a vacuum, and to create a space–time void of even a few minutes would REQUIRE a cloak BIGGER THAN EARTH because of the space required to recombine the accelerated leading edge and slowed trailing edge of the light wave. Worst of all, the theory requires the metamaterial to boost light rays BEYOND THE fundamental SPEED OF LIGHT."

Originally posted by ATLien
Worst of all, the theory requires the metamaterial to boost light rays BEYOND THE fundamental SPEED OF LIGHT."

Oh c'mon man, we were all enjoying a good fantasy here until you had to go spoil it with a dose of reality! Those darn burglars are foiled again

Just kidding, I was going to post that but you beat me to it!

There is a thread on ATS about how the speed of light has been broken but that's fantasy too. Given that faster than the speed of light requirement, I don't see this being built in the near future. However I'm sure lots of bizarre stuff is possible if light or matter can travel faster than the speed of light in violation of our current theories.

Originally posted by Tribble
Cloaking space and time would trump the "Invisible Man." They are not talking about 100 years down the road, only this next year.

Next year? I doubt it. Check this out...

Any prospect of upscaling the technology to conceal events even lasting a few minutes remains in the realm of science fiction because of the vast scale of the cloak that would be needed, McCall adds: "Light travels at 100 million meters per second and in order to cloak it you'd need that many meters (of metamaterial), roughly speaking."

In other words, if this is still science fiction, it would possibly take more than a hundred years to fructify.

So don't have that Budweiser just yet!


edition.cnn.com...

reply to post by Tribble


I have no problem with Quantum teleportation, the scientific principle which allowed Chinese scientists to send a messege directly from point to point, without traveling through the interviening space, nor with the fantastic achievement which is the Large Hadron Collider at CERN, and many thought that it would create a black hole and suck us all to crushed and ripped oblivion. I greatly enjoy and support these, and other contemporary scientific endevours because I understand them to be progressive, and benificial to the furtherance of our understanding of the way our universe functions, and by extention, benificial to the future residents of the Earth.
However, I cannot say that I feel the same way about the idea of fiddling about with space time in the fashion described in this article.
It is not that I believe the endevour to be impossible, or even extremely difficult, because let us be realistic, science has proven itself to be an industry which makes insanity utterly commonplace, and has done for some time now. My worry stems from the possible side effects of the experiments which may come to pass.

First of all , experimentation is oft a process largely revolving around trial and error. It can , in that regard, be extremely dangerous. But there is a big difference between messing about with a few phials of acid and some flammable or explosive substance, and changing the way the fundamental principles of continuity and entropy function, or the speed at which they operate. The article states that in order to perform this space time cloaking trick , it may be crucial to increase the speed at which light travels, to an order of magnitude above that of the normal speed of light, and there is NO previous record of that ever having happened, and so no firm idea what will occur as a result. No information therefore is available as to what forms of energy may be released, or what the effect of this ONE section of time and space behaving so differently to the rest may be.
When dealing with small things like chemicals, and individual particles, the results can, to an extent , be contained, and prevented from effecting things outside the test area. But space time is intrinsicaly connected to itself, and if one part speeds up un naturaly , what is to stop the very fabric of what we know as time and space from unravelling, ripping, distorting, and what will the over all effect of THAT monumental balls up be? Those who thought the Hadron Collider was a dangerous plan were not thinking remotely clearly, this much is obvious from the absolute twaddle some of them were talking during the run up to its activation. There was already evidence of similar machines being opperated without death or damage to existance, and the only difference was one of scale.
But this project is UTTERLY uncharted territory , and much care must be taken to ensure that the experiments which may come of this study are in no way likely to cause any effects that we can neither control nor guess at the magnitude of.

My second issue with the idea of a space time cloak, is that there is NEVER a good reason for a government to hide something so thoroughly , and therefore absolutely no reason for anyone ELSE to hide something so thoroughly. I suppose what I am worried about here is the fact that even were a viable technology to come from this, that it would have no legitimate use, and very probably the only people who would even consider using it, would not use it for moraly acceptable practices. Cloaked satellites for instance benifit no one, nor do cloaked bases on soil one should not be standing on, nor bases on the Moon that the public do not know about. There is no excuse a government , or indeed anyone else could come up with , that would convince me that they hold a moral position which would allow me to trust them with such a potentialy game changing piece of hardware, and frankly, the further I take these thoughts for a walk, the further from a good idea this seems.

Once again, I do not stand against science, its endevours, or its progress. Indeed, I believe pure scientific endevour to be the key to the survival of mankind, one of the gears in the machinery which may bring us the stars one day, and allow us to grow as a species beyond the boundaries of our fractured culture and international mistrust. However, there are some projects which make me think that perhaps there is a case for stopping some projects, UNTIL we have figured out how to live without war, so that the potential for harm caused by good science is as low as possible when an experiment bears fruit. This project, from a moral point of veiw, would be one of them.

Originally posted by TrueBrit
My second issue with the idea of a space time cloak, is that there is NEVER a good reason for a government to hide something so thoroughly , and therefore absolutely no reason for anyone ELSE to hide something so thoroughly.

Interesting moral argument and I can't say I disagree with it in principle. On the other hand, I think it's unrealistic to expect that somewhat idealistic view to be fulfilled in reality.

The military folks must be drooling over invisibility technology. Think about the night vision technology investments made so a power can see and attack an enemy when the enemy lacking such technology can't reciprocate.

The invisibility cloak takes that one step further. Did you see the 2005 movie "Stealth" where they made a plane invisible? It was kinda corny plot-wise, but technology-wise, that's the idea.

I suspect will have some kind of practical invisibility technology at some point, but it will be lacking the time travel component in the science fiction version that's the topic of this thread.

It's all a bit too scientific for me.
Is there anything positive that this could be used for as I can only envision a whole lot of negative
scenarios.

reply to post by OrionHunterX


Hey, if they can build the fibre optic model in five years, that would be great.
Do you suppose the claims of one year were made to win an upcoming grant?

Mc Call has already altered the speed of light by -1/3
en.wikipedia.org...

Originally posted by Aelfrede
Makes you wonder how much they're already using this technology, and also what other advanced technologies they have up their sleeve.

From email:

And yes, as you mentioned, I've worked on/with HAARP. If you want to learn more about that see US Patent #xxxxxxx. If you read the patent you'll understand the relevance to HAARP and the Stealth Bombers, etc. You're an intelligent man and I'm certain that you'll be able to make the connection. If you read US Patent #xxxxxx, you'll understand (a little better) my connection to/with and collaboration with these men. LOL...suffice it to say that the 'Predator' (as in the movie) is alive/living at Los Alamos!

I am free to talk about any of my published US Patents which are in the public domain. I am, however, under an edict from DoD under the NSA to 'report any inquiries relative to the stealth patent'. I had a phone call from a person who identified himself as an 'Undersectetary of Defense' and the person read a statement to me which I later found was excerpted from the National Security Act, as amended. I was 'ordered' to report any inquiries of any kind, by anyone, to DoD relative to that case (patent). I've only had to do that one time in 20 years when a group of Isreali's, based in Philly, contacted me relative to undertaking collaboration on some 'project' in Haifa. I reported this as instructed and the group 'disappeared' shortly thereafter.

Nano microspheres ... applied as a 'coating' ... activated by errr certain energies... instant stealth



Only thing is so far they have not yet managed to cover up the heat signature of planes... but those make for very interesting UFO sightings

That's all you will get out of me. Your on your own for the rest of the research. I wouldn't want to have anyone shot

reply to post by TrueBrit


I think your cautionary stance is being echoed throughout the scientific community.It looks like the plan to build the fibre optic model is at the tipping point, we will have to wait and see.
I agree this technology is very dangerous, a tear in time or a time rift seems probable. But like the succession of larger and more advanced particle collider's, I believe they will press on.

I don't know about this tech and how such claims are allowed to be documented, unless the pure fiction factor is near a tipping point with probability. I was against the HLC until the first results were posted. Now I just await the new results that come from it.

reply to post by zorgon


That's one helluva email. I get the picture of the bomber/HAARP. The Predator must carry it's own power source, as in the movie- no?

What we need is some way to phase our whole planet out of space time when a meteor threat or other cosmic threat appears.

Originally posted by Tribble
The Predator must carry it's own power source, as in the movie- no?

Not sure on that... but I can check. I do know that it works not only on light since radar is EM radiation it also makes one invisible to radar by the same principle. As well as impervious to DEW's

BTW just to be clear... the 'Predator" reference did not mean an Alien... just the tech. Just in case someone got that wrong

Alferde can u please contact me in relation to an older post of yours, strange round shadows...i have the round shadow on film and in pics