College Students Fight Fire with Sound Waves

NoShoes

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Aug 15, 2013
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College Students Fight Fire with Sound Waves

Fire has met its match in dubstep.

Finally, there's a legitimate reason to turn your music up, thanks to two engineering students at George Mason University in Fairfax, Virginia. Seth Robertson and Viet Tran have created a device that turns low-frequency sounds like the "thump-thump bass in hip-hop" into a tool to fight fires. Watch the incredible feat in the video below.


Robertson and Tran stumbled upon the idea after discovering that DARPA was working on a similar, if larger-scale, project. They used around $600 dollars of their own money to create the device, which works by utilizing low-frequency sounds to separate oxygen from fuel and keep flames from reigniting.

"Eventually I'd like to see this [device] applied to swarm robotics where it could be attached to a drone and that would be applied to forest fires or even building fires where you wouldn't want to sacrifice a human life," said Tran.

While this isn't the first time sound waves have been used in this capacity, Tran and Robertson's machine was created to be a more practical alternative to the large-scale devices already in works. There's a possibility that this technology could be adapted for professional or consumer use in the future, but for now Robertson and Tran have been showcasing the device's capabilities on small, contained fires in which rubbing alcohol serves as the fuel.

With so many use cases for this kind of device, what are your thoughts on the technology?

Source: George Mason University [http://www.huffingtonpost.com/2015/03/26/fire-put-out-with-sound-seth-robertson-viet-tran_n_6945192.html?ncid=fcbklnkushpmg00000063]

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Ukomba

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Oct 14, 2010
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They built Vinyls Base Cannon. It's a good idea, but high decibel sound can be dangerous, and the power required might make the battery too heavy to fly on a drone.
 

Deathfish15

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Nov 7, 2006
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Rubbing alcohol isn't a very good fire test. Why not try a grease fire instead? Or how about wood fires? Something with fuel source that doesn't all burn out in 10sec...
 

flying_whimsy

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Dec 2, 2009
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I love that they spent $600 and wound up with a working prototype, while darpa has probably spent millions before having that much.

I really like the idea of using these for swarm robotics and inexpensive drones: that could change a lot of how we fight fires.
 

Ironman126

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Apr 7, 2010
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Deathfish15 said:
Rubbing alcohol isn't a very good fire test. Why not try a grease fire instead? Or how about wood fires? Something with fuel source that doesn't all burn out in 10sec...
Patience! All in due time. This looks like a proof-of-concept prototype. Come back in 6 months to a year and perhaps there will have been more extensive testing.
 

Strazdas

Robots will replace your job
May 28, 2011
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This is nothing new. waves, soundwaves among that, can move air enough to starve fire off exygen long enough to kill it.

The problems with it is that it is highly inefficient and dangerous. for a real life fire the strengh of the soundwaves needs to be very high. this means that anyone in the vicinity without proper protection risk going deaf and the amount of power needed to generate it on continuous basis means that firetrucks might need to start installing nuclear reactors.

Also as pointed out rubbing alcohol is bad test.
 

ccggenius12

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Sep 30, 2010
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Tangentially related, pretty sure this tech could also be used to kill tornadoes, seeing as there's proof that explosions can, and really, an explosion is just a lot of pressure pushing outwards. I'm assuming that a bass bomb would be more eco-friendly than the mid-western gas station whose destruction provided evidence for this claim.