Mexican student creates an acoustic fire extinguisher to put out fire in seconds

	Mexican student creates an acoustic fire extinguisher to put out fire in seconds(upsocl.com)
	241 points by rguiscard 10 hours ago \| 83 comments
	tl;dr: A 16-year-old student in Tamaulipas, Mexico built an acoustic fire extinguisher using a 12-volt battery, frequency generator, and speaker emitting 30 pulses per second, which displaces oxygen and extinguishes flames in 5-8 seconds. Named "Vortex Tech," the device reportedly works on wood, flammable liquids, grease, and electronics without leaving residue, and will be presented at an international science fair.
	HN Discussion: ↓This technology has been invented before by others, contradicting the article's novelty claim ↑Celebrates the young student's curiosity and initiative regardless of originality ~The technology is known but has practical niche applications like grills or grain silos ↓Skepticism about the article being low-quality sensationalized content •Requests for better sources and more substantive information about the invention