Sensor detects bad milk, blood coagulation and road stress

Craig Grimes, a professor of Electrical Engineering at Penn State, has created a very practical gadget.

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<p><a href="http://www.physorg.com/news135531681.html">Sensor detects bad milk, blood coagulation and road stress</a></p> <p>Craig Grimes, a professor of Electrical Engineering at Penn State, has created a very practical gadget.</p>