An aluminum rod just before (left) and just after (right) it strikes the surface of a cornflour and water suspension. Rather than penetrating, the rod causes the suspension below it to solidify for an... more 
An aluminum rod just before (left) and just after (right) it strikes the surface of a cornflour and water suspension. Rather than penetrating, the rod causes the suspension below it to solidify for an instant. less 
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LiveScience.com | Photo By Scott Waitukaitis, 2011.
Wed, Jul 11, 2012 2:10 PM EDT