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DailyDirt: Cool Sound Effects
from the urls-we-dig-up dept
Non-linear properties for materials can create some really cool sound effects. We're not talking about the 'Wilhelm scream' here, but some interesting ways to make soundproof walls -- and super-secret submarines. Here are just a few examples of bending sound in some new ways.
- Forget about dropping Mentos into Diet Coke, make an acoustic lens with an array of soda cans. Fancy lab equipment is apparently unnecessary for demonstrating how to focus sound beyond its diffraction limit. [url]
- The theory of acoustic cloaking has produced an actual acoustic cloaking device. The "cones of silence" are hopefully coming to cubicle farms soon! [url]
- There's also a "roach motel" for sound -- where the sound goes in, but it doesn't come out. Theoretically, acoustic wave diodes are possible -- and the next trick will be to make one... [url]
- To discover more interesting tech-related content, check out what's currently floating around the StumbleUpon universe. [url]
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Did insects invent it first?
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Re: Did insects invent it first?
That's an interesting idea... natural metamaterials would be a pretty cool discovery.
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Interesting stuff!
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