.....put a fire out with it: http://tuhsphysics.ttsd.k12.or.us/Research/IB08/NishColl/index.htm
There is now a system for doing so: http://www.extremetech.com/extreme/132859-darpa-creates-sound-based-fire-extinguisher
8)
There is now a system for doing so: http://www.extremetech.com/extreme/132859-darpa-creates-sound-based-fire-extinguisher
8)