Showing posts with label Sound Weapons. Show all posts
Showing posts with label Sound Weapons. Show all posts

June 11, 2015

Sound-based Fire Extinguisher




This new sound-based fire extinguisher puts out flames by dropping the bass. Two engineering students from George Mason University in Virginia have invented a potentially revolutionary fire extinguisher that uses low-frequency sound waves instead of water, gas or foam. The cylindrical device, smaller than many more traditional fire extinguishers, is held about a foot away from flames and immediately snuffs them out.

June 26, 2010

Toronto Police Use Sound Weapons

http://www.theglobeandmail.com/news/world/g8-g20/police-can-use-sound-cannons-but-with-limits-judge/article1617752/

Jill Mahoney
Globe and Mail
Update Published on Friday, Jun. 25, 2010 10:50AM EDT
Last updated on Friday, Jun. 25, 2010 3:59PM EDT

October 28, 2009

Police Use Invisible Technology


[See earlier video at]
http://enoughroomvideo.blogspot.com/2008/07/rumbler.html

"the sirens 'have the distinct advantage of penetrating and shaking solid materials, allowing vehicle operators and nearby pedestrians to FEEL the sound waves"

"the sirens and speakers may cause hearing damage 'to anyone exposed to them on a daily basis."

http://www.nypost.com/p/news/local/cops_super_sirens_get_ready_to_rumble_iRuabQC6Bb8gQhEKvk4P3L

Cops' super-sirens get ready to rumble
By BRAD HAMILTON, JOHN DOYLE and CYNTHIA R. FAGEN
New York Post
Last Updated: 7:35 AM, October 25, 2009
Posted: 2:49 AM, October 25, 2009

September 26, 2009

Pittsburgh Police Use Sound Weapons


http://apnews.myway.com/article/20090925/D9AUJCS01.html

Civil liberties groups: Police overreacted at G-20
Sep 25, 5:30 PM (ET)
By MICHAEL RUBINKAM
AP