Report, edit, etc...Posted by smasher25 on 2006-10-21 at 06:14:46
Ok my cousin read some korean news and he found out that they have actually developed a part invisiblity cloak. It does not totally conceal the wearer but the person's body does not show and only their head and a semi-transparant fabric is visible. They haven't developed it fully yet to conceal everything and leave behind a ripple, but I'll try to get the link from my cousin as soon as I can. (Although prolly DT_battlecrusier is the only person I know who is able to read korean)
Report, edit, etc...Posted by JaFF on 2006-10-21 at 07:44:40
As far as I know, that technology was used some time ago.
Report, edit, etc...Posted by Deathawk on 2006-10-21 at 08:39:46
http://news.yahoo.com/s/ap/20061019/ap_on_...of_invisibility
Yeah, but I can't think of anything good to use it for. Not saying that sneaking into bathrooms isn't good, but it's not a morally good thing to do XD
Yeah, but I can't think of anything good to use it for. Not saying that sneaking into bathrooms isn't good, but it's not a morally good thing to do XD
Report, edit, etc...Posted by JaFF on 2006-10-21 at 08:44:42
Warfare.
Report, edit, etc...Posted by Deathawk on 2006-10-21 at 08:48:18
Ehh, even then, I don't think that will make that much of a deal. I'm sure millitaries will have another way to detect them within a few years... or even now... and it doesn't look like it's that easy of a feat to pull off anyway, not sure how practical it would be to use in the millitary.
Report, edit, etc...Posted by Gigins on 2006-10-21 at 09:10:37
There are 2 theoretical ways how to get the invisibility effect. Both ways would try to stop an object from being visible, obviously. 
What is "visible"? As we all know or should know we see objects that reflect light. If light waves can pass an object without being diffracted, the object is 100% invisible. For example a high quality glass doesn't diffract light or does it ~0.1%. This way we can perfectly see through it. A bad glass does diffract(break) light so we see a blurry view, just like we "see" cloaked units in Starcraft. Considering to light rules, the cheapest way to make something invisible in to turn off the light. Any object in dark is invisible because they do not reflect light.
Anyway, first way to get the invisibility effect in light environment would be to convert the light waves so they can pass the object and deconvert if when it has passed it. It would be something similar how the microphone>speaker system works. For that we need a material or device-material that can convert light waves into waves that can pass the object without any problem. For example radio waves that can pass a human. And then deconvert them so they reflect the object behind the object.
As you can see, light pass the 1st object and reflects the 2nd.
Device-material would probably be heavy and thick and wouldn't be too handy. Because converting waves back and forth is not the easiest job. But if we could develop the right way how to code and decode light waves while saving it's direction we would get the invisibility "coat".
2nd way would be to manually diffract the light around the object. The device-material would be much lighter because it wouldn't need to convert the waves. But the problem with this method would be to get the right direction once light gets pass the object.
I prefer the 1st method.
What is "visible"? As we all know or should know we see objects that reflect light. If light waves can pass an object without being diffracted, the object is 100% invisible. For example a high quality glass doesn't diffract light or does it ~0.1%. This way we can perfectly see through it. A bad glass does diffract(break) light so we see a blurry view, just like we "see" cloaked units in Starcraft. Considering to light rules, the cheapest way to make something invisible in to turn off the light. Any object in dark is invisible because they do not reflect light.
Anyway, first way to get the invisibility effect in light environment would be to convert the light waves so they can pass the object and deconvert if when it has passed it. It would be something similar how the microphone>speaker system works. For that we need a material or device-material that can convert light waves into waves that can pass the object without any problem. For example radio waves that can pass a human. And then deconvert them so they reflect the object behind the object.
- The red line is normal light wave.
- The blue line is modified light wave or other kind of wave like radio wave that carries the light wave information.
- The green cage is the material that converts and deconverts light waves.
- Object number 1. is invisible, object number 2. is visible.
As you can see, light pass the 1st object and reflects the 2nd.
Device-material would probably be heavy and thick and wouldn't be too handy. Because converting waves back and forth is not the easiest job. But if we could develop the right way how to code and decode light waves while saving it's direction we would get the invisibility "coat".
2nd way would be to manually diffract the light around the object. The device-material would be much lighter because it wouldn't need to convert the waves. But the problem with this method would be to get the right direction once light gets pass the object.
I prefer the 1st method.
Report, edit, etc...Posted by JaFF on 2006-10-21 at 09:15:47
Deathawk: Heat cameras can detect. The problem is that today nobody can afford it, but later... I can imagine a war where if you don't have a heat camera, you're dead...
Report, edit, etc...Posted by JordanN_3335 on 2006-10-21 at 10:03:05
Eh thanks DEAD the more you know....
Yea I saw this on the news yesterday about some guy expiramenting on "invisibilitie cloaks". He made some quote saying "you can pour a can of coke on yourself and disappear". But I think this is a bad idea cause face it. If this thing really works what about the criminals,thugs and other mischeifs. Once they get a hold of that that who knows where the world could be.
So I guess thats how Terran Ghosts cloak right?
Yea I saw this on the news yesterday about some guy expiramenting on "invisibilitie cloaks". He made some quote saying "you can pour a can of coke on yourself and disappear". But I think this is a bad idea cause face it. If this thing really works what about the criminals,thugs and other mischeifs. Once they get a hold of that that who knows where the world could be.
So I guess thats how Terran Ghosts cloak right?
Report, edit, etc...Posted by Voyager7456(MM) on 2006-10-21 at 10:23:57
I wouldn't imagine that ordinary criminals and such would be able to get ahold of these things very easily... like people said, the only practical application seems to be military use.
Report, edit, etc...Posted by Mp)7-7 on 2006-10-21 at 11:42:30
We have semi cloaked car so we still win. They have not perfected it, they say that they have not figured out a way to see out of the cloak but they having things in it that are nearly invisible, the problem they are running into is that they can only get one wave of color invisible at one time, so a one color car cant have any differences between the window or the tires or you'll see them.
Report, edit, etc...Posted by DT_Battlekruser on 2006-10-21 at 20:29:02
The problem with invisiblity cloaks is that they are much less useful now than back in the fantasy days of centuries past. Humans give off many other telltale signs of their presence, including exerting pressure on the group below, making sounds, giving off infrared waves, and more.
and.. I speak Korean?
and.. I speak Korean?
Report, edit, etc...Posted by Gigins on 2006-10-21 at 20:36:30
I think it's more of a challenge than use.
Report, edit, etc...Posted by Chef on 2006-10-21 at 21:09:09
I don't get this. If the cloak is making you see only what is beyond it, shouldn't you be able to see the person inside the cloak, since they are beyond the fabric? Transparent materials aren't exactly new XD (most glass, many plastics, etc). For 'cloaking' to be possible, it would need to be able to exlude visual tells of a person, and as far as I know, those tells are the same as every other peice of matter in the world. Want nearly invisible fighters? Make an unmanned aircraft entirly of see-through materials. Not so easy.
Me thinks it's a load of bull, and I won't believe it till millitaries start paying for it.
Me thinks it's a load of bull, and I won't believe it till millitaries start paying for it.
Report, edit, etc...Posted by DT_Battlekruser on 2006-10-22 at 01:00:37
The "cloak bends light around it and is a double sided surface. You can only see what is behind the other side of the cloak. Not that the have only managed to cloak small cyllindrical objects, not things like people.
Report, edit, etc...Posted by Sie_Sayoka on 2006-10-22 at 01:48:14
i think the best practical use would be to use the technology as a camouflage against airiel viewing such as planes and sattelites. however your normal bushes and whatever would probolly be better so it fails 
Report, edit, etc...Posted by Mp)7-7 on 2006-10-22 at 03:00:15
they call it more of a invisibility shield than a cloak, but it bends the light around the object so what you see is distorted as though you were looking inot water and seeing the bottom of whatever is underneath the water, like say a straight object placed in water, waves and is cocked to the side from where there is no water.
Report, edit, etc...Posted by smasher25 on 2006-10-22 at 03:59:54
right I didn't know this technology was so old because it seemed too new to me and it seemed scientically impossible to make this through any fabric or material.
ADDITION:
oh yea my cousin refuses to give the link to me because I'm part canadian, and not full korean
it shows somone wearing the cloak, a picture not shown on the yahoo news.
ADDITION:
oh yea my cousin refuses to give the link to me because I'm part canadian, and not full korean
it shows somone wearing the cloak, a picture not shown on the yahoo news.Report, edit, etc...Posted by Mp)7-7 on 2006-10-22 at 04:17:58
Well, it is probably a photoshoped picture anyway, because it hasnt been perfected yet, I am almost 100% sure that any country would be able to be this far ahead of us, we have only been able to get one color completely invisible, also it was only a small piece.
Report, edit, etc...Posted by Sie_Sayoka on 2006-10-22 at 06:48:59
its not that high tech its just basic science not using anything like cloaking generators or whatever.
Report, edit, etc...Posted by Chef on 2006-10-22 at 08:37:52
If it's 'basic science' why wasn't this invented a decade ago? We've known how the human eye works and the physics of light for a long time. Being someone who actually passed a Physics course, I can safely say nothing I learned even suggested it is possible, and being that this technology would be so incredibly useful, it SHOULD be a topic of hot discussion. What you're telling me, is that a couple of no-name 'scientists' who apparently fund themselves (as there was no word on who funds them) have suddenly figured it all out.
Yeah, light can bend, but unless you can tell me how the light magically knows to exit at the exact opposite side of the cloak, after somehow bouncing around inside the fabric without exiting before it reaches the other side... you have little more than faith.
IOW I'll believe it when the military starts buying it. Or at least some kind of credible science informant says it's been done.
Yeah, light can bend, but unless you can tell me how the light magically knows to exit at the exact opposite side of the cloak, after somehow bouncing around inside the fabric without exiting before it reaches the other side... you have little more than faith.
IOW I'll believe it when the military starts buying it. Or at least some kind of credible science informant says it's been done.
Report, edit, etc...Posted by Mp)7-7 on 2006-10-22 at 12:09:09
Thair is a shield of metamaterial - a conductor and insulator hybrid that acts as an accelerator for incoming light rays, incoming light hits the metamaterial shell. Instead of reflecting off the shell, the light is piped through the shell, curving around the cloaked object. Light emerges from the shell on the same path it would have been traveling had nothing happened to it, making the cloaked object appear transparent - invisible.
Report, edit, etc...Posted by Killer_Kow(MM) on 2006-10-22 at 12:53:40
QUOTE(Jammed @ Oct 21 2006, 10:15 AM)
Deathawk: Heat cameras can detect. The problem is that today nobody can afford it, but later... I can imagine a war where if you don't have a heat camera, you're dead...
[right][snapback]576863[/snapback][/right]
[right][snapback]576863[/snapback][/right]
Nobody can afford thermal cameras? They're in wide use in today's world O.o
Also, a thermal camera isn't always effective; it can be fooled with a pane of glass.
Report, edit, etc...Posted by smasher25 on 2006-10-23 at 04:22:00
QUOTE(DT_Battlekruser @ Oct 21 2006, 07:28 PM)
The problem with invisiblity cloaks is that they are much less useful now than back in the fantasy days of centuries past. Humans give off many other telltale signs of their presence, including exerting pressure on the group below, making sounds, giving off infrared waves, and more.
and.. I speak Korean?
[right][snapback]577071[/snapback][/right]
and.. I speak Korean?
[right][snapback]577071[/snapback][/right]
I thought it said that you were learning Chinese, Japanese, and Korean in your hobbies profile. Or wait... Maybe it said learning bits and bits of those languages... But after I read you speaking japanese on the shoutbox I thought that you could read other languages.
Report, edit, etc...Posted by Yenku on 2006-10-23 at 08:20:55
Well, I found alot of info on this four years ago online, but the site since requires a subscription so I can't get in.
I remember it was being developed by students(with the school) from Japan, and it was a jacket with small cameras which just projected the image from one side of the wearer to the back side of the jacket. It is far off from ever being a cloak you would see in a sci fi movie but still cool. I remember the military being very interested in it.
I remember it was being developed by students(with the school) from Japan, and it was a jacket with small cameras which just projected the image from one side of the wearer to the back side of the jacket. It is far off from ever being a cloak you would see in a sci fi movie but still cool. I remember the military being very interested in it.
Report, edit, etc...Posted by Gigins on 2006-10-23 at 09:23:56
Hey thats a pretty good idea. Only problems would be with angles and zoom. But overall it's pretty cool.