Scientists ponder invisibility cloak?
595019
Theoretically, as it is said in the article, it is possible.\n \nLet me explain how we can "see", our eyes have the ability to recognize objects through light. And light, as you already well know I assume, is composed of 7 colors:\nRed\nOrange\nYellow\nGreen\nBlue\nIndigo\nViolet\nIt is known as the ROYGBIV or the spectrum. When light strikes through an object, in this case we will set an example of a blue object, all the other colors are absorbed by the object except for the color blue causing it to strike away to that object. And then it enters our eyes and our brain will interpret is as such.\n\nNow if all of the colors are absorbed, then no light will enter and we see it as black. If all colors are strikes away towards our eyes then wee see it as white. \n\nIt is said in the article that they are gonna use gadgets that will steer light and other forms of electromagnetic radiation AROUND the "cloak" and not to bounce back to our eyes causing it not to have any color at all, not even black nor white. What is that? It is indeed invisible.
793031
various government agencies try playing around with fringe science all the time. they tried time travel, psychic intelligence gathering, astral projection, invisibility, antigravity, lasers, etc. they didnt get very far with a lot of it because its not plausible. some things you should look for that are more reasonable are "flying triangles" and "rods from God"
1016317
We can see some infrared wavelengths, but only faintly. If you've ever been in a photographic darkroom you'll know what I mean. Or switch on an electric bar heater in a dark room. He won't be completely invisible, but close to it.
730142
Possibly so. Possibly no. I'd say the Heisenberg uncertainty principle comes foremost into play here. Maybe also Schrödinger's cat. Is it dead or still alive? That would make a significant difference, you know. These questions can't just be taken so lightly. And how could you even consider Y!A as a forum to resolve such complex issues as this? More to the point, even assuming Planck scale dynamics can be fully understood with the mathematical tools we have at hand today, where exactly does that get us? We still don't know what topping to put on our pizza this weekend. Or whether a third eye would make a good chick magnet. Or even whether that darn cat is still alive or dead.... 'tis an enduring mystery. And we wouldn't want to take all the mysterious challenge out of life, now would we?....Meow.
813538
I have seen the advert and I am quite intrigued!! Does it actually seem invisible?\nGood luck anyway, sorry I can't help!!
1113063
No. It's the gravity they can't escape. (Light is ultimately made up of particles.) Speed is not an issue.
1176343
No.  It would only be proof of his invisibility.\nIt's not a proof of his existence.
931473
I have this very object. My foolish neighbor calls it an air humidifier, like he knows anything, ( he thinks we landed on the moon, I know crazy)\n     You can borrow it, but you have to come at night. My house is the one covered in tin foil and cloaked in the star trek special edition invisibility shield, with extra force field protons.
200265
No, you cant discover someone's secret who are not famous died at no where and decay away 10 years ago. You cant see the things which are too small, like the shape and structure of a subset of a photon. And some knowledge will be gone over time due to some reason. Sometimes, something is impossible, for example, someone ask u to fly using ur hands only without any device, tools, machines, planes etc (something which help u to fly and not from ur organ and are not attach to ur body), or maybe someone might ask u get to a place outside of milkyway (that have not yet been discover by anyone) in 1 seconds. See, it's impossible, right? If not, then I would really like to see that kind of things, it's a new discovery then.
1111621
Nope.  Light would not reflect off you (hence, invisibility), nor would you absorb light (hence, casting a shadow).\n\nI know that Britain and America have been working on invisibility for years, something kinda like the cloaks the Harry Potter movies use (except thicker).  They are currently working to bend light so it travels around the object with the invisibility shield.  The light will neither reflect nor will it be absorbed.  Therefore, no sight and no shadow.  Wouldn't that be awesome to see!
609407
Well i don't think it is possible....but if it is created it will be great...but the cost will be very high...many unsolved mysteries would be solved...hope someone invents it.. ;)
913191
The French, Americans, Germans and British are making suits that don't show body heat.  So not only will they be visably camoflaged, but also nearly invisible to thermal imaging as well.\nuniform systems:\nFrench: FELIN\nhttp://www.army-technology.com/projects/felin/images/2-felin-system.jpg\nhttp://www.army-technology.com/projects/felin/felin3.html\nBritish: FIST\nhttp://www.army-technology.com/projects/fist/images/3-fist.jpg\nhttp://www.army-technology.com/projects/fist/fist1.html\nGerman: IdZ\nhttp://www.army-technology.com/projects/idz/images/2-sighting-systems.jpg\nhttp://www.army-technology.com/projects/idz/images/1-infantryman.jpg\nAmerican: Land Warrior\nhttp://www.army-technology.com/projects/land_warrior/images/LandWarrior_1.jpg\nhttp://www.army-technology.com/projects/land_warrior/land_warrior2.html
833030
Actually, a light beam is invisible as well, unless it's shined directly into our eyes.  A light beam is visible in a dusty room, and a magnetic field is also visible when loose iron filings are present.  The reason why magnetic fields seem invisible to us is merely because our eyes aren't tuned to pick up magnetic fields, but that does not say that it's impossible to devise an artificial eye that can "see" such magnetic fields.
915429
We only see the light reflected off of an object.  Google the invisibility cloak that scientists have comeup with.  It works by refracting and redirecting light .
110507
Invisible. There's a very good possibility it could lead to being wealthy.
1034438
I suppose we could find some sort of clear plexi-glass type of material that would be suitable for aircraft-grade structures, but making the entire plane clear would probably be impossible.  A materials science engineer would probably know more about this.\n\nOne question from me though: is there a need for this?  The stealth bomber, for example, flies so high that visual detection by ground based anti-aircraft emplacements is quite low.  So low, in fact, that I have heard that it has never been fired upon from the ground (don't quote me on that though).  So for modern military aircraft applications, I would say radar invisibility is far more important than visual invisibility.\n\nAs a side note, I had read about a clothing-like light scattering material in either Popular Science or the Spectum magazine (forget which).  Anyway, it somehow bends or scatters light in such a way as to partially reveal what is behind the covered object.  There was a picture of a guy wearing a piece of it, and I was pretty amazed.  It was far from perfect (could still obviously see the guy), but I could imagine it being a very useful camo material if it improves.
283334
You can't because that is the point of the invisibility cloak.