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Dr. Nürburg
Writer & Musician
Nevernevercreech
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 Posted: Mon Apr 27, 2009 6:22 pm Post subject: |
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Following further research I think The Brits are only experimenting with camera optics.
However according to Michio Kaku scientists have now managed to do it with visible light.
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Last edited by Dr. Nürburg on Thu Nov 04, 2010 3:39 pm; edited 1 time in total |
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Danilus
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| Posted: Mon May 25, 2009 12:26 pm Post subject: |
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| lol...but not even a giggle ... |
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jard
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| Posted: Sun May 31, 2009 10:21 pm Post subject: |
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| Very nice but it's a penny that the tank's pic. isn't real. It would be nice to see a direct application of this technology like on that image and not just on those cylinders. |
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Dr. Nürburg
Writer & Musician
Nevernevercreech
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| Posted: Sun May 31, 2009 10:41 pm Post subject: |
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Well metamaterials bend light around an object. Up until about a year ago they were only able to bend the microwave spectrum, but as I said earlier, according to Michio Kaku, scientists have managed to bend the entire spectrum.
Basically, in one of his talks, he explains that an actual man-sized cylinder was constructed out of the new metamaterial, then a soldier placed inside. The soldier apparantly became completely invisible.
Give it a year and I expect we'll see some kind of demonstration of the new material.
I'd be suprised if things became totally visibly undetectable. I expect that in practicality, if a cloaked object were to move, even though light is travelling around it, cause and effect will create some kind of motion ripple between the foreground and the background as the cloaked object moves.
But heh, you'd never notice if it was standing still. 
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Last edited by Dr. Nürburg on Thu Nov 04, 2010 3:39 pm; edited 1 time in total |
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Homelessthinker48
Lookin outside gonna make the move
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| Posted: Sun May 31, 2009 11:56 pm Post subject: |
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| you alwasy have some breaking news mr jepps se haha |
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Dr. Nürburg
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The Big Hobb
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| Posted: Fri Mar 19, 2010 8:49 pm Post subject: |
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| il believe it when i truly see it |
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garyoak99
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| Posted: Sat Mar 20, 2010 12:49 pm Post subject: |
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Thank you for that link! I'm impressed that you were able to remember that topic despite creating it over a year ago! 
As for the topic itself; I am glad that they are making progress towards making something invisible although one should keep the more sobering sentences of that article in mind:
| Quote: | Currently, the rods can be made as small as 200 nanometres. To hide a bump from visible light would require rods as small as 10 nanometres.
And, as Mr Ergin explained, there is a limit to how small a point light can be focused down to.
"You could say, 'why not just make [the rods] smaller?' but it's not that easy to scale these structures down. Fabrication techniques have their limits," he said. |
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The Big Hobb
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| Posted: Sat Mar 20, 2010 1:36 pm Post subject: |
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| garyoak99 wrote: |
Thank you for that link! I'm impressed that you were able to remember that topic despite creating it over a year ago!
As for the topic itself; I am glad that they are making progress towards making something invisible although one should keep the more sobering sentences of that article in mind:
| Quote: | Currently, the rods can be made as small as 200 nanometres. To hide a bump from visible light would require rods as small as 10 nanometres.
And, as Mr Ergin explained, there is a limit to how small a point light can be focused down to.
"You could say, 'why not just make [the rods] smaller?' but it's not that easy to scale these structures down. Fabrication techniques have their limits," he said. |
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even after reading the article i dont see anything truly large like a person being able to become invisible for a really long time, and thats the only way i would be interested in it. |
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Dr. Nürburg
Writer & Musician
Nevernevercreech
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| Posted: Sat Mar 20, 2010 5:07 pm Post subject: |
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Yeah, but these new 'metamaterials' are the first scientific proof that theoretically we can make things invisible to visible light. Gradually, more and more proof from developments are making this a reality.
Continuous immediate satisfaction will bore you after a while - witnessing the evolution of new technology is just, if not more so exciting in my opinion.
Gives us something to aspire to.
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The Big Hobb
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| Posted: Sun Mar 21, 2010 3:42 pm Post subject: |
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| not sure if i missed it but did the article mention how long the invisibility would last or if at some point it would wear off? |
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Dr. Nürburg
Writer & Musician
Nevernevercreech
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| Posted: Sun Mar 21, 2010 4:58 pm Post subject: |
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No it doesn't wear off - it's a material.. as long as the construction of the fabric is not artificially manipulated it will continue to work forever.
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garyoak99
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| Posted: Sun Mar 21, 2010 5:53 pm Post subject: |
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| pshobbes479 wrote: | | even after reading the article i dont see anything truly large like a person being able to become invisible for a really long time, and thats the only way i would be interested in it. |
I would never say this development is uninteresting on its own though.
| Quote: | | But Professor Hess said that this was a great achievement and these photonic materials could be used in the development of lenses and in light storage and optical circuitry. |
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The Big Hobb
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| Posted: Sun Mar 21, 2010 11:44 pm Post subject: |
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| Mr Jepps Se wrote: | | No it doesn't wear off - it's a material.. as long as the construction of the fabric is not artificially manipulated it will continue to work forever. |
well now see that peaks my interest a little more. |
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KillerCarsS
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| Posted: Mon Mar 22, 2010 1:32 pm Post subject: |
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| Lmao that's awesome. Meh I miss Harry Potter, I wish there were move books to be written =\\ |
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