Show Tests Are Arc Made Of Intensity of Auto Headlights I ESTS to determine whether TESTS I headlights on the market conform with the city traffic traffic traffic fic ordinance provi providing ing that light rays shall not rise more than two forty inches at seventy-five seventy feet ahead of the car are being made at the University of Utah Belief that the experiments will prove of value to motorists was expressed today by Professor sor Orin of the physics department of the institution The experiment is being made by Orson Smith a senior and an assistant in the physics department department department depart depart- ment with the aid of a photometer photometer photometer photo photo- meter an instrument used to de determine de- de termine the intensity of light The instrument was constructed constructed con constructed con con- out of several old machines machines machines ma ma- chines in the laboratory and has proved satisfactory in in making several tests showing that many I lenses absorb nearly half the light and scatter the remainder where it is not needed I V |