From the November 23, 1935, issue

RADIO ENABLED SCIENTISTS TO AID STRATOSPHERE FLYERS

Scientific experiments performed at world’s-record altitudes brought smiles to the faces of the scientists gathered at the headquarters of the National Geographic Society during the successful ascension of the balloon Explorer II on Nov. 11 to a new record height of over 74,000 feet.

By radio the scientists not only heard what was going on in the balloon but were able to act as “cerebral screwdrivers or pliers,” as one of them put it.