Student inventors are squaring off at the UW-Madisonâ??s annual “Innovation Days” competition. The emphasis is on helping people live more efficiently.
Inside the universityâ??s Engineering Hall, students show off their inventions. At one table, a temperature controlled window opens and closes automatically. Nearby, a digital “bread box” alerts people when their food has gone bad. Further down, a stove runs entirely on plant oil, while a hand-powered generator at another demonstration table supplies enough energy to light a bus stop.