The invisible service of science

Service of Science reminds us first of the visible service of science, which one can see in every nook and corner of our daily life. But there is an invisible service of science which has a purely intellectual, esthetic, and spiritual value. This is the service to which I wish to call attention. In this connection it is well to point out at this very outset that during the last three hundred years, since the pilgrim fathers landed at Plymouth rock, science has revealed three distinct physical realities. The first physical reality was revealed through the science of matter in motion; the second, through the science of electricity in motion; and the third, through the science of energy in motion. Each one of these contributes a service which is not visible in every nook and corner of our daily life; but it has an intellectual as well as an esthetic and spiritual value.