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[BBC] Experts unveil 'cloak of silence'

post #1 of 12
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Quote:
Scientists have shown off the blueprint for an "acoustic cloak", which could make objects impervious to sound waves.
Quote:
"The mathematics behind cloaking has been known for several years," said Professor John Pendry of Imperial College London, UK, an expert in cloaking.
"What hasn't been available for sound is the sort of materials you need to build a cloak out of."
Quote:
The Spanish team who conducted the new work believe the key to a practical device are so-called "sonic crystals".
These artificial composites - also known as "meta-materials" - can be engineered to produce specific acoustical effects.

"Unlike ordinary materials, their acoustic properties are determined by their internal structure," explained Professor Pendry.
Source
post #2 of 12
So you can make really loud computers silent?

Or sneak your car home late at night? =O
post #3 of 12
"sonic crystals" reminds me of the mission in Tiberian Sun where you need to reclaim the Disruptor Crystals from a Nod cargo train. :3
post #4 of 12
Quote:
Originally Posted by ejams View Post
So you can make really loud computers silent?

Or sneak your car home late at night? =O
I think so, if Antec or even Lian Li came out with a case coated in this I would probably buy it regardless of the cost.
    
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post #5 of 12
Ahhhh hehe, and maybe someone will build a jacket with these crystals and call it "Mother-In Law Edition"...hahahahahaha
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post #6 of 12
Quote:
Originally Posted by ChielScape View Post
"sonic crystals" reminds me of the mission in Tiberian Sun where you need to reclaim the Disruptor Crystals from a Nod cargo train. :3
HAHAHA I completely forgot about that mission
    
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post #7 of 12
no more flying under the radar for air planes
post #8 of 12
Quote:
Originally Posted by XxSilent22xX View Post
no more flying under the radar for air planes
Well, newer stealth tech leaves a signature of a golf ball, so not too much of an issue now anyways. I am curious, (at work, so can't read article) do the crystals dictating the frequency, do they have to be "tuned" to the sound that needs the dampening.
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post #9 of 12
Hmm I guess it either means this:
Object won't be detectable by radar or whatever.
Or, Object will stop sound from passing through. (Like a barrier of trees on the highway! )
    
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post #10 of 12
Thats not how radar works...
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