In 1857, Irish scientist John Tyndall recognized that sound waves could extinguish flames. Now, scientists hope that phenomena could lead to the development of new fire extinguishers that would be useful, say, in a spacecraft or terrestrially to avoid water damage from sprinklers. First though, they need to figure out why exactly sound can snuff fire. Most likely, the sound wave causes a drop in pressure that extinguishes the flame. From Scientific American:
In 2004 Dmitriy Plaks and several of his fellow students at the University of West Georgia tested whether sound waves can douse fires in hopes of using sound to extinguish flames in a spacecraft. They placed a candle in a large topless chamber with three bass speakers attached to the walls. The candle was lit and the Canadian rock band Nickelback's "How you remind me" was pumped through the subwoofers. Within roughly 10 seconds, once the song hit a low note, the flame was out, according to results published in 2005 in The Journal of the Acoustical Society of America.
On Monday, the Supreme Court will review the 9th Circuit's decision in Apple Inc. v. Pepper, in which the plaintiffs argue that Apple has established a monopoly over apps for Ios (this part is actually incontrovertible, as Apple has used both technology and law to prevent rival app stores from operating), and that Iphone and […]
I’ve mentioned it online before, but here we go: Two years ago, my wife and I decided to leave our rented home behind and move into a 40-foot RV. We spend our spring and summer in Alberta, Canada where she has a job for six months of the year working as an addictions counselor. The […]
Androkavo tests some of the cheap eBay solder against the brand-name stuff; it gets there in the end, but it’s surely not the advertized 60/40 alloy and needs to be close to 400° before it behaves itself.
The Adobe Creative Cloud is home to a suite of editing tools today’s creatives count on to produce their content. Whether you’re an aspiring photographer, animator, or graphic designer, Adobe’s programs can help you in your creative pursuits, and with the Complete Adobe CC Training Bundle, you can come to grips with six of them for […]
Your pet might be photogenic, but getting them to stare long enough at your camera to snap that Instagram-worthy photo isn’t as simple as telling them to sit. Bribing your pets with their favorite treat, however, might just do the trick, and with the Adjustable Pet Selfie Smartphone Attachment, you can do just that while getting […]
The cybersecurity landscape is changing, and now one of the most effective ways to counter hacking threats is to employ another hacker against them. Commonly referred to as ethical hackers, these professionals use a cybercriminal’s tools against them, checking networks for vulnerabilities and patching them up before they can be exploited. The Certified Ethical Hacker Bootcamp […]