AERONAUTICAL ENGINEERING
Scientists Tackle Jet Noise Problem
Cambridge, Mass.—There are three basic ways to calm the noise poured forth by a large jet engine: use a quieter engine, install a muffler, or persuade the public to accept the noise, according to the acoustical consulting firm of Bolt Beranek & Newman, Inc., who are devoting considerable time and energy to the matter.
By George L. Christian10 min