Rob Winner – rwinner@shawmedia.com<br /> <br /> Jeremy Benson holds up a rose that was dipped in liquid nitrogen during a demonstration at STEMfest at the Convocation Center at Northern Illinois University in DeKalb on Saturday, Oct. 22, 2011. STEMfest seeks to increase public awareness of science, technology, engineering, and math (STEM) initiatives, activities, careers, and education for the people of northern Illinois.
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