Fascinating Cornstarch in Water Video

Penn State has a video of cornstarch in water doing some amazing things. If you shake a container of cornstarch and water (fixed frequency of the oscillations at 120 Hz; acceleration to create Faraday waves), you can poke a hole in the mixture which will remain open. If you form an indentation in the mixture at 120 Hz and an acceleration of 20 g, then the indentation morphs into 'fingers', which generate more fingers until the entire surface is covered. Although you would need an oscillator to duplicate the effects seen in the video, it's very easy to make a similar electroactive slime for your own experimentation. You can explore some of the interesting properties of this mixture by interacting with the slime using a small piece of styrofoam.