Show Sea Collisions Minimized The danger of collisions at sea on foggy tossy nights cnn can now be minimized by a new Invention which shows shows- with luminous spots nn and arrows on ona a marked compass screen the screen the location location location loca loca- tion and direction of every cry ship within with in a radius of ten miles It Is a cathode ray device de which Is operated operated oper oper- by the radio signals sent out by other ships every twenty seconds Pilots watching It know practically by a n mere mero glance at the tho chart when and how much to change their courses Colliers Collier's Colliers Collier's Weekly |