Quote:
Originally Posted by canarymoon
There is a rather sophisticated defensive system that uses high frequency sound, with which SOME cruise ships are equipped. I believe it may be called a "LARS."
Perhaps someone who is up to snuff on this device can chime in with further information.
|
Sheila, it's called Long Range Acoustic Device(LRAD). (poor LARS, pun intended) I mentioned this in post #2. Click on the links below.
Long range acoustic device - Wikipedia, the free encyclopedia
HowStuffWorks "How LRAD Works"
American Technology Corporation - PRODUCT OVERVIEW |