cornstarch physics

ingredients

mix 2 tablespoons corn starch with 3.5 teaspoons water

electronics

we connected four 1000 watt kenwood automobile stereo subwoofers to a 7.1 channel onkyo receiver

plug an audio frequency generator into the mono input, dial between 50hZ and 200hZ for the action  

warnings

if you’re using more than two speakers, be sure to wire them in series or your amplifier will catch fire

do not pour your cornstarch mixture down the drain when finished or it may clog