Engineering students use sound waves to put out fires http://j.mp/1ydgtzN

Engineering students use sound waves to put out fires http://j.mp/1ydgtzN:

via Twitter http://j.mp/17L5fpo

http://j.mp/OLW8el

from my Tumblr http://j.mp/1GtKfHr

March 26, 2015 at 05:14PM