posted on Dec, 30 2007 @ 08:50 AM
Thank you. I didn't know about the LRAD. I guess this is using high frequency directed hypersounds.
I found an entry also in wikipedia:
What I was originally talking about is a ultra-low-frequency sonic superweapon (4.3hz or lower).
Its inventor thought about it when electronic instruments in his labaratory caused to him nausea, and stomach problems and some cracks on the walls!
He measured the decibels with a device and found that those problems were caused by ultra-low-frequency sounds vibrating the molecules of matter.
So, he then designed a weapon about this phenomenon also inspired by the biblical story of the thick walls of Jeriho destroyed by the Hebrew
"trubets" who thought was a prehistoric sonic weapon delivered by some advanced prehistoric civilization.
Here are the schematics of the Greek (G.Giolvas) compressed air chamber ultralowfrequency resonance sonic weapon (4.3Hz):
He then sold it to a french laboratory after finding out that the greek military didn't care much about his invention. (fools)
According to the inventor claims, this device if built in large scale, could cause severe damage even to reinforced concrete buildings!
Here is the french variation of a sonic weapon device dated around 50's and 60's, by Vladimir Gavreau.
Same symptoms and evolution with the greek cannon. Also designed with pipes but in a different pattern.
Finally here is a video of the German sonic weapons of WWII:
(but I don't have much information about them)