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BAS / President's Messages - Current and Archived
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| The current month's posting, highlighted in yellow above, is also presented below. When the next month's becomes available, the current one will go to the archives, where you can retrieve it by clicking above. If a month is greyed out, it means either it isn't posted yet or isn't available. |
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BAS Message
January 2025 |
Miscellaneous News1. The BAS is looking for a new webmaster. The current webmaster will train you and hand it over to you, and provide support as necessary. The website is written in simple HTML. You will need a computer and a high speed internet connection (you will need to download a 6GB backup in a reasonable amount of time). $300 is the annual payment. You may be asked to support admin of the BAS Facebook pages as well. 2. The BAS is looking for a new president. The past president will assist in the transition. Elections will happen soon. 3. College Students Outdo Boeing at Drone Warfare - Wall Street Journal, 22 Oct 2024 In an antidrone technology competition earlier this year, Boeing showcased a futuristic laser weapon that can punch a hole straight through a hostile aerial threat.The multinational -- and several other defense giants -- lost to four college students who knocked drones out of the sky using sound waves. The rookies' device was developed in the backyard of one of the student's parents, using an old car speaker. The four University of Toronto engineering students spent around $17,000 of their own money to develop their antidrone technology. Their speakerlike device blasts ultrasound waves that destabilize a drone's navigation systems, sending them off course or crashing to the ground. "We are building from scratch, we had no reference whatsoever," said Anna Poletaeva, one of the students. All materials have a so-called resonant frequency -- the point at which they vibrate most when hit by sound waves -- This could be used to destabilize drones midair. It is akin to the science class demonstration of shattering a wine glass with sound. The pair enlisted a robotics student, who unscrewed two "tweeter" speakers from his car. Tweeters produce higher-pitch sounds, which the team blasted at drone components in his living room. An electrical engineer, Michael Acquaviva, joined to build the device's circuitry. Canadian Army officials have indicated that they could be interested if the company can increase the range at which it stops drones to at least 100 meters, or 328 feet, up from 50 meters. The company is confident in getting past 100 meters but that surpassing 150 meters will be tricky. Overall, their technology could be ready to deploy within the next two years. "It's exciting for sure, sometimes a bit daunting," said Poletaeva. |
The Boston Audio Society
PO BOX 260211
Boston MA 02126
problems? email Barry: webmaster@bostonaudiosociety.org
updated 4/14/23