I have had several messages wanting more information on the process of plants being cooked with sound, as in the theory of cymatics and crop circles. It took me a while to re-locate the information, which was directly in front of my face, but I found it. Paul Vigay did some research on frequencies correlated with crop circles. He found that below 20 hz sound become infrasonic and such frequencies are directly involved with the biological processes. When infrasonic frequencies are combined with high pressure, permanent changes are produced.
In water infrasound creates heat which tears apart the molecules to form water vapor. In the case of plants, the vaporization creates a void which collapses the area instantaneously. This action called "vapor cavitation" also creates local temperture increases of hundreds of thousands of degrees for a fraction of a second. Ever hear about the hissing sounds coming from non man made crop circles directly after it was formed? You can find this info at www.spiritofmaat.com/archive/dec2/silvs.htm or google crop circles frozen music silva. Actually read all of the sites on this matter to get a broader understanding of what this may mean for crop circles.

this is very interesting have u got any proof and why is pressure needed aaswell if its done by sound my thoery is that the added pressure pushes the particles together thus making it easier for sound to travel

no but what I forgot to mention is that several years ago swiss scientest Hans Jenny published how he was observing the way sound vibration created geometric shapes. A low frequency created a simple circl encompassed by rings whereas higher frequencies increased the number of concentric rings around a central circle. As the frequency rose so did the complexity of shapes. Jenny also provided a physical connection to the creation of crop circles, since many of the vibrationla patterns found in his photo mimicked crop circle designs.

Crop circles are a great lesson of man pulling mans leg with science parlor tricks. When I hear of crop circles I think of bored Air Force personel aboard the latest laser gunship pulling our legs. Yep, all kinds of weapons over the whole electromagnetic spectrum that can also be used in a non lethal way like this. Thats my opinion anyway.

Why use advanced technology? Because it is literally impossible for anyone to understand geometry as well as the use of a board, some rope, and some exceptionally basic surveying skills(which can easily be replicated with more rope).

Yeah...that's it.