Science Experiments

A cornflour monster

Wed, 11th Mar 2009

What you Need

I waterproofed a 100W RMS speaker using a silicone spray, and then drove it using a signal generator via an amplifier. I then filled the cone about a third full with cornflour (cornstarch) mixture and turned on the power.

At about 30Hz (this depends on how much water you put in the cornflour) as I turned up the power it starts to change shape.

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