Scientific conquests of 1928

At the January 9, 1929, meeting of the New York Electrical Society Doctor H. H. Sheldon, Chairman of the Department of Physics of Washington Square College, New York University, will give the third annual talk in review of progress in science and engineering during the preceding year. The exact title for the meeting will be “Scientific conquests of 1928.” The speaker will illustrate his lecture with a number of specially arranged demonstrations; among which will be: — the train that obeys its “master´s voice,” the use of an oxidizing agent as a fire extinguisher, the photoelectric cell as a traffic cop, a night watchman, etc. Each year this meeting, with its review of science, has proved of unusual interest to both the technical and non-technical man. The Society extends an invitation to members of the Institute to attend as its guests. Meeting will be held in the Engineering Auditorium, 29 West 39th St., New York at 8.15 p. m., Wednesday, January 9, 1929.