28 Oct 1932, March Field, California, USA — Los Angeles: Science Recruits Plane In Test Of Cosmic Ray. Equipped with delicate electroscopes, an airplane was recruited by Science Oct. 27, at Los Angeles, California, to test the action of the elusive cosmic ray at high altitudes. The plane was used in an experimental flight in the interest of the theory of Dr. Robert A. Millikan, California scientist, that cosmic and light rays are similar and not susceptible to variation by the magnetic pull of the poles. Photo Shows-Dr. Robert Millikan of the California Institute of Technology (Left) discussing with Lt. Howard, commanding officer of the 11th Bombardment Squadron, the results of his cosmic ray tests at March Field, California. This plane, a bi-motored bomber, which carried the famous scientist’s instruments more than 21,000 feet, will be part of the elaborate ground display in connection with the 4th aerial — Image by © Bettmann/CORBIS