Sound waves are all around us, and when harnessed, can do some super cool things. Trace looks at a few ways we're using the power of sound waves to our advantage. Read More: Sound Waves Levitate, Move Particles http://news.discovery.com/tech/nanotechnology/sound-waves-levitate-move-particles-130716.htm#mkcpgn=ytnws1 "People have been able to levitate small objects using sound for years. But applications for the technique are severely limited because scientists hadn't figured out how to contr