further to the magnets for warfare question

[samuel23]

I read a book (sci-fi not factual) that proposed the use of giant sound wave machines to destroy the opposing army's communications and targeting equipment. Now I know that soundwaves can be harmful to eardrums but can they be generated in enough volume (or would it be the pressure that the sound waves cause?) to have a detrimental effect on electrical equipment (I'm thinking of super-duper volume guitar / microphone feedback type of sound) expanding that thought slightly, if amplified sound at a certain pitch can shatter glass, theoretically could super amplified sound at different pitches destroy other materials, like ceramics, steel etc?

[Jenarry]

If you work to the rule that every action has an equal and opposite reaction then yes you could shatter ceramics metal and other materials, but this is just guess work on my part although bomb blasts are actually sound waves of different frequencies and these cause considerable damage.
I do however know that certain resonating sub frequencies can vibrate the human insides to jelly !

[Birt]

There was a case of a high class cruise ship being attacked by Pirates off the coast of Africa recently. The pirates were discouraged by a "Sound Gun" which apparently knocked them off thier feet whilst trying to get close to the ship. Not sure what damage this can do to people but i assume it isnt good foru s.

[londonbarry]

I think you mean the Long Range Acoustic Device (LRAD). I found this on the internet: -

http://www.defense-update.com/products/l/LRAD. htm