Unique fountain keeps time to music

Two illuminating fountains which automatically synchronize their light and the movements of their waters with radio music have been installed in the San Francisco civic center. By means of a special attachment, the tempo and the loudness of the tones modify or increase the force of the jets and change the lights, which are of four different colors. As the volume of the radio signals varies, the jets rise or fall and the lights shine through the spray so that the music selection is “reproduced” in color and motion.