Coolest speaker ever?

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gitarretyp

Coolest speaker ever?
« on: 4 Nov 2008, 08:38 pm »
A Chinese research group has created speakers made of nanotubes. It produces sound by expandning and contracting (heating and cooling) rather then vibrating. So, the material can be folded and stretched without effecting the output.

sts9fan

Re: Coolest speaker ever?
« Reply #1 on: 4 Nov 2008, 08:40 pm »
80C is hot!

MGDeWulf

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Re: Coolest speaker ever?
« Reply #2 on: 4 Nov 2008, 09:12 pm »
I believe Lewis Athanis worked on an expanding/shrinking driver back in the '90s.  Nanotubes?  Probably not.  He was working on the design for N.E.A.R.  I don't believe the design ever got past prototype stage.  It was very promising.

marty

funkmonkey

Re: Coolest speaker ever?
« Reply #3 on: 4 Nov 2008, 11:20 pm »
 :thumb:  Very cool!!! errr... hot!  whatever, thanks for posting.  I am continually fascinated by nano-tubes and their various applications.  This one ranks right up there with the paint that changes colors when charged! 

Thanks.

Imperial

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Re: Coolest speaker ever?
« Reply #4 on: 5 Nov 2008, 12:08 am »
I can remember a friend of mine telling me that one could make sub with a pulsating balloon.
You'd fill up a balloon, a really large one, put it in a chamber and attach many many voice coils and magnet assemblies.
Then you could controle how it changed shape and make a omni sub, sort of a pulse sphere driver.
We did it on paper I believe, but we never built it. It's a great idea I'm sure..  :thumb:
He's a theoretical physicist by the way, he would all the time tell me that my ideas were way off.
And then one day he came up with this...  aa balloon sub. Dang, we should'a built the thing!  :D
There was something about a pneumatic valve system that would work in tandem as well, making it inflate and deflate
really quick.

Back in the 90s Cervin Vega built a sub using a foam type screw shaped object that moved in a cylinder.
It's amazing what will work! The Vandersteen sub driver, the Tympany sub driver, there are alot of cool sub drivers out
there not neccesary looking like one...

Nanotube drapes acting as subwoofers... now wouldn't that be a lifesaver for any system?



Imperial

gixxerific

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Re: Coolest speaker ever?
« Reply #5 on: 8 Nov 2008, 07:34 pm »
Too lazy to look it up but I beleive I have seen fan subs. Subs that use fans to produce music. From what I remember they do wonders for sound reproduction.

Alright here is one http://www.rotarywoofer.com/
Dono

Imperial

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Re: Coolest speaker ever?
« Reply #6 on: 8 Nov 2008, 08:20 pm »


 Thigpen Rotary Woofer...

Imperial