Stevenson High School and Henkle Middle School of White Salmon won their divisions at the Google Wind Challenge over the weekend inside The Dalles Civic Auditorium.  More than 100 students from 20 local high schools and middle schools competed to build the competition’s best turbines.  29 student teams worked together with volunteer mentors to design, build and test their turbines.  The colorful, creative machines were then presented to local judges who selected the winners based on each turbine’s power and efficiency.  In the high school competition Columbia was second behind Stevenson, with The Dalles and South Wasco tied for third.  Among the middle schoolers St. Mary’s Academy took second trailing Henkle, with Sherman in third.