Частотный генератор, металлическая пластина и сыпучее вещество

Add me on Facebook - (click LIKE on Facebook to add me) The song in the video is my latest song. You can find it on iTunes or Amazon. Song name: Dark Wave =sr_1_18?ie=UTF8&qid=1370527738&sr=8-18 All of the equipment for this experiment was provided by PASCO scientific Leave a comment letting me k