Sonia Murthy, 17, Ethan Perrin, 17, and Sophia Tevosyan, 17, of Nikola Tesla STEM High School in Redmond won a third Grand Award and $1,000 in environmental engineering at the Intel Science and Engineering Fair in Pittsburgh, Pa. They also won the third place NASA award and $1,000 for their project, “Implementation of a Carbon Dioxide Refrigeration System as a Cogeneration Appliance and Alternative to Halocarbon-based Refrigeration Systems.”
