n 18-ounce plastic cup n Metal Slinky n Pipe cleaner n STEP 1: Hold the top ring of the Slinky to the bottom of the plastic cup. n STEP 2: Gently swing the Slinky back and forth, allowing it to hit ...
Physically, sound is just pressure moving through a medium. If you harness that pressure correctly, you can actually push things around using nothing but sound. That's exactly what researchers at ...
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