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nilslindemann 3 hours ago [-]
Well, a search for "youtube acoustic fire extinguisher" indicates it has already been invented a few times by people all over the world. The most interesting video is https://www.youtube.com/watch?v=ZvnCQg4w4o8
2 hours ago [-]
fsckboy 2 hours ago [-]
I'll bet that high school girl's science was better than what's in that youtube (it doesn't set a very high bar)
biffert8 2 hours ago [-]
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Animats 3 hours ago [-]
This seems to be a known technology but hasn't made it as a product.[1] It might have potential for very specific types of extinguishing, such as grills and grain silos, where the distance from extinguisher to trouble spot is fixed.
I sure hope humans are in the loop at those companies, reviewing pics that aren't recognized as faces. If I ever see one of those captchas, they'll get to see some things that no human has ever, or should ever, see.
CamperBob2 2 hours ago [-]
Nah, I just have my clanker deal with it. It's better at those stupid puzzles than I am.
mitxela 2 hours ago [-]
Cloudflare doesn't do puzzles. It either says you're a bot or you're not a bot.
LoganDark 1 hours ago [-]
Love when something decides I'm a bot and the decision is final. (Looking at you, CPU-World -- it even lets me know my IP address has been banned for "abuse", too.)
kevin_nisbet 3 hours ago [-]
Not exactly acoustic but reminds me of a high school science project we had one year, something along the lines of put out a candle with a contraption. My partner and I rigged up a balloon to be popped by the candle, and the balloon pop blows out the candle. Probably not an original idea, but I don't think any other group in the class tried a similar approach. Worked like a charm.
spottedmarley 3 hours ago [-]
Oooh.. from the title I thought this was about an extinguisher for when your guitar catches fire. Makes more sense now
diogenescynic 7 minutes ago [-]
This is something from science fiction or a comic book. Super cool!
ssl-3 3 hours ago [-]
> Ángela Karime Venegas Hernández is 16 years old and has an idea no one else had.
...meanwhile, some folks at George Mason University were doing this back in 2015[1]:
> The fire extinguisher uses low-frequency sound waves to douse a blaze. Engineering seniors Viet Tran and Seth Robertson now hold a preliminary patent application for their potentially revolutionizing device.
It’s frustrating that the site wrote that. I’d wager a taco that she never made that claim.
rootedbox 3 hours ago [-]
At other frequencies, sound can actually intensify flames, depending on the surrounding environment. Standing waves and the frequency of the sound (FM) are likely factors in this phenomenon. However, it’s not advisable to use sound as a method for extinguishing fires.
dosisking 3 hours ago [-]
Instead of FM, maybe they can just use an AY-3-8910?
copper-float 2 hours ago [-]
Why does it matter that she's Mexican?
ajkjk 2 hours ago [-]
Stereotyped as less of a STEM country, probably accurately, so it seems newsworthy plus gives people hope and optimism to hear about cool inventions from there.
bigstrat2003 1 hours ago [-]
Or, you know... people like to know more about the bright kid who came up with a cool idea. Not everything is racism.
ajkjk 58 minutes ago [-]
either one, yeah
vlugorilla 1 hours ago [-]
Seems to matter to you
lern_too_spel 2 hours ago [-]
Because it's a Chilean blog about feel good stories in Latin America, just like it says on the tin.
rotringlvr 1 hours ago [-]
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fkgkglgkkh 2 hours ago [-]
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yesitcan 2 hours ago [-]
[flagged]
jamwil 2 hours ago [-]
Found the Argentinian.
pacomerh 2 hours ago [-]
oh boy, you're proving the opposite with this "clever" comment.
yesitcan 2 hours ago [-]
“The average IQ in the United States is typically standardized around 100, while unofficial global internet datasets estimate Mexico's average IQ between 86 and 90”
nomel 6 minutes ago [-]
IQ by state [1]. Remove California, and it'll go up a bit!
out of curiosity, would something like this hurt a human? I assume the sound waves must be pretty powerful to put out a fire.
zdragnar 1 hours ago [-]
There's plenty of links in Dublin comments for other instances of the tech being developed at least partially, and at least one for in-home fire suppression. Given that last one, I'm thinking it operates on the basis of resonance rather than amplitude to disrupt combustion.
_carbyau_ 2 hours ago [-]
Seems like a standing wave thing to halt airflow rather than "overpower with Bill & Ted's Awesomeness!".
Depending on what they have going, it might be loud, might not.
dfee 55 minutes ago [-]
when i was in the 5th grade (give or take a couple years), there was an innovation project where we were to bring in and present to the class an invention.
i remember a girl inventing what i now know to be a "flexible weighted dip tube" – think of it as a shampoo bottle that you can pump upside down – and was amazed.
like this submission, the flexible straw wasn't really invented by the student. at best it was independently discovered, but this patent was from at least twenty five years before: https://patents.google.com/patent/US3547296A/en
to that end, i wonder what the point of presenting these inventions as your own are – especially in the time of the internet when prior art is so easily discovered. or, did i miss the point?
Sabinus 1 hours ago [-]
I struggle to understand why this article is interesting or upvoted.
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cactusplant7374 3 hours ago [-]
> Ángela Karime Venegas Hernández is 16 years old and has an idea no one else had.
Hate to be a downer, but this has been done before.
The reason this keeps getting reinvented is that the physics only half works. Sound disrupts the flame's boundary layer and separates it from the fuel, but it removes almost no heat. The fuel stays above its ignition temperature, so anything hot nearby relights it the second the speaker stops. DARPA demoed this in 2012 and it stalled there. Impressive on a small liquid fuel fire in a lab, very hard to scale to anything you'd actually want to put out.
rkagerer 2 hours ago [-]
I wonder if one could use a thermal camera (or some other, high speed sensor) and some kind of feedback loop to squelch it and keep it disrupted until it cools. Or conversely, manipulate the flame for more complete combustion (in industrial processes).
But granted, I have trouble seeing this work on a large scale without much more sophisticated sonic wave tech.
cwillu 3 hours ago [-]
Pangram reports 100% AI; it may be an artifact of translation, but...
[1] https://www.mdpi.com/2571-6255/8/4/129
> Verify you are human
Does anyone else command + w on first sight of a cloudflare screen?
https://www.tomshardware.com/tech-industry/googles-camera-ba...
...meanwhile, some folks at George Mason University were doing this back in 2015[1]:
> The fire extinguisher uses low-frequency sound waves to douse a blaze. Engineering seniors Viet Tran and Seth Robertson now hold a preliminary patent application for their potentially revolutionizing device.
[]: https://patents.google.com/patent/US10569115B2/en
[1]: https://www.youtube.com/watch?v=uPVQMZ4ikvM
That said, it's a solid student project. I'm sure she'll do well at university.
[1]: https://www.ifsecglobal.com/uncategorized/soundwaves-a-new-p...
[2]: https://www.esd.whs.mil/Portals/54/Documents/FOID/Reading%20...
[1] https://worldpopulationreview.com/state-rankings/average-iq-...
Depending on what they have going, it might be loud, might not.
i remember a girl inventing what i now know to be a "flexible weighted dip tube" – think of it as a shampoo bottle that you can pump upside down – and was amazed.
like this submission, the flexible straw wasn't really invented by the student. at best it was independently discovered, but this patent was from at least twenty five years before: https://patents.google.com/patent/US3547296A/en
to that end, i wonder what the point of presenting these inventions as your own are – especially in the time of the internet when prior art is so easily discovered. or, did i miss the point?
Hate to be a downer, but this has been done before.
https://acoustics.org/pressroom/httpdocs/150th/Plaks.html
DARPA worked on it 10+ years ago.
But granted, I have trouble seeing this work on a large scale without much more sophisticated sonic wave tech.