Engineers hit pay dirt with clay mixture

A watery, mud-like substance has hit pay dirt for Case Western Reserve University engineering professor David Schiraldi and his research group.

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<p><a href="http://www.physorg.com/news158931444.html">Engineers hit pay dirt with clay mixture</a></p> <p>A watery, mud-like substance has hit pay dirt for Case Western Reserve University engineering professor David Schiraldi and his research group.</p>