Abstract

II spectrum A GOOD MATCH other species' nests. Fortunately, any popu­ lation loss is offset by the large number of Researchers around the world are experi­ young from birds who nest in larger forests menting with ways of using aeronautic tech­ such as the Ozarks. This may be one more nology in automobile engines, but a consor­ reason for conserving forests. In related tium of European companies and research efforts, the Electric Power Research Institute institutes may be the first to produce a prac­ (EPRI) recently introduced a new techno­ tical version with distinct benefits for the logical device that emits radio-frequency environment. The consortium, which signals designed to keep birds away from includes Renault, Peugeot, and Volvo along harmful areas such as wind farms, airplane with aerospace and electronics firms, was engines, and hazardous chemical sites. launched in 1987. Its goal is to create a Imperceptible to humans, the waves have "hybrid" automobile engine, one using a gas already been approved by the Federal Com­ turbine powered by burning a mixture of munications Commission for broadcasting gasoline and oil to drive an electric motor; and may also be used to keep birds from fly­ rechargeable batteries will permit