Evening Star Newspaper, June 22, 1931, Page 19

GAIN WIDE: FIELD Radio and Talkies Rapidly Increase Public Interest in Acoustics. BY WILLIAM BRAID WHITE. (Copyright, 1931, by the Associated Press.) | CHICAGO, June 22—Fifteen years ago, acoustics, or the science of sound, was an inactive branch of physics. A few eminent workers like Dayton C. Miller were doing fine work in it, but neither they nor any one else then could have suspected that their studies would soon become the center of a roaring ac- tivity. Yet this is just what has hap- pened. The science of sound ought not perhaps to be too quiet, and at any rate it is today quite as noisy and as e:;cm.ng as any one could possibly de- sire. No branch of physical science is to- day of greater importance or is occupy- ing the attention of a larger number of trained workers. . ‘What is the reason? Radio! Broad- casting and sound-picture making have become vast indusiries, calling for a great and increasing quantity of highly- trained scientific instrument workers, and a vast amount of new apparatus, ost of which was not even in existence 15 years ago, and none of which had —ever been seen outside the few acoustic laboratories then in existence. Today ; the Acoustical Society of America ha 700 members, nearly all of them actively working in the science, and a large ma- Jority in some part of it related directly to the broadcasting of sound or to its recording and reproduction through {Idlo recelving sets and the sound pic- ure. Public Noise Conscious. : Moreover, the public is becoming foise conscious and is taking a genuine interest in the efforts which are being made by acoustic engineers and scien- tists to measure noise, study its physical properties and discover wkat elements in the daily din of our cities are ac- tually preventable and can be elimi- nated. The most interesting developments now being made in the sclence of | acoustics are these: 1. The great improvements now be- ing accomplished in the technique of broadcasting, owing to closer co-opera- tion between musiclans and engineers, which is leading to a much more sys- tematic study of the relation between the production of tone and its repro- duction. A remarkable example of re- cent accomplishment is the new re- flector microphone, which can be “sighted” on a stage or platform end made to follow accurately the move- ments of speakers or singers. crease in Music. 2. The great increase in the quan- tity of music reproduced by means of the photo-electric cell, on the films of motion pictures, whereby the motion- picture industry has been revolution- ized, a new industry has arisen to deal with the installation of sound equip- ment in theaters, and a vast new fleld of scientific research has been opened up almost overnight. 3. The systematic study of noise by the governments of cities and by re- search laboratories in different parts of the country for the purpose of dis- covering how unnecessary no'se may b2 eliminated. This study has led to the cevelopment of extremely ingenious ‘methods of measurinz and evaluating the loudness, the composition and the , irritation effects of noise. 4. The development of new means for studying sound, especially musical tone, by optical and oscillographic methods, whereby visible representa- tions of sound are produced and can be_ photographically reccrded. 5. The much greater interest recent- | ly shown in the study of musical tone production along scientific lines, which is leading to vast improvements in the construction of pianos, organs and other musical instruments. ‘Today our civilization is still far more eye-keen than it is ear-keen. But sound is coming into her own, and the developments now taking place in the sclence of sound, acoustics, lead one to hope that the ears of the future will be as well trained as now the eyes are. If this really comes abcut, as I think it will, the world will be a far more pleasant and harmonious place of residence 25 years from now than it now is. ADMIRAL 0. G. MURFIN ASSIGNED TO CAPITAL SWill Be Judge Advocate General of : Navy After August 1, Vice s Admiral D. F. Sellers. 2 _The naval officer who had charge of WUncle Sam’s mine bases in Scotland *during the World War is coming to +Washington soon to be judge advocate sgeneral of the Navy. Admiral Orin G. Murfin will report here August 1 to re- Jieve Rear Admiral David F. Sellers, “who will command a battleship division. Admiral Murfin is a native of Ohio. He entered the Naval Academy in 1893. He ‘was awarded a Distinguished Service Medal for his services in the World ‘War. ‘The Navy Department has been ad- vised that Admiral Murfin has hauled down his flag aboard the U. S. 8. Omaha. He was relieved by Rear Ad- “miral Clark H. Woodward. Street Car Damaged by Fire. A Capital Traction Co. street car seaught fire last night at Eleventh street jand Pennsylvania avenue and caused tapproximately $150 damage before it could be extinguished. * The street car was proceeding along sthe Avenue when a maghine cut across “its path. Motorman Roland Lumsden, #1121 Twenty-fourth street, was forced ito throw the car is reverse and the =overloaded control box streaked fire, Zwoodwork at the forward end of the car . ignited (o | being ignited. L1 1] BT .‘ [T —— 1705 K Street Corner Conn. Ave. mwwmmm‘ | | ton and Virginia, the wedding to take pl: THE EVENING STAR, WASHINGTON, D. C., ‘MONDAY, JUNE 22, 1931 MISS LOUISE STEIDLEY, “ Whose parents, Mr. and Mrs. H. J. Steidley of Pittsburgh, announce her engage- ment to Mr. Ruppert O. Sharitz, son of Mr. and Mrs. T. J. B. Sharitz of Washing- ace late in August.—Harris-Ewing Photo, 1,800 SCOUTS DEPART Jamboree Emblems Are Awarded to Boys Spending Week End in Visit to Capital. After receiving jamboree insignia signifying attendance at the annual Scouts who had encamped in Rock Creek Park over the week end pulled up stakes yesterday and departed for their homes in Pennsylvania, Delaware, Maryland, Virginia, West Virginia and New Jersey. ‘The visitors rounded out a busy three-day program yesterday morning with a special mass for the Catholic Scouts at 8 o'clock and a general serv- ice for the campers at 9 o'clock con- ducted by Rev. Joseph R. Siz00, pastor of the New York Avenue Presbyterian Chreh, After the services the emblems were awarded as fokens of their journey and visit to the Capital City. The camp was officially closed at 11 am. The youths and their leaders departed by bus, alitomobile and train during the afternoon, The schedule followed by the Scouts to President Hoover Friday afternoon, a trip to Arlington National Cemetery Saturday morning, where they placed a wreath on the Tomb of°the Unknown third regional conclave, 1,800 EOY’ during their stay here inclided a visit | Soldier, and a sight-seeing tour which encompassed many points of interest about the city, including the Capitol, AFTER CAMPING HERE i REiiha *Miseam ‘sna e Zoo. In the evenings the Scouts held large campfire gatherings at their Camp Good Will site, enjoying group singing, stories and stunts. NEW CANADIAN ENVOY TO BRING CREDENTIALS By the Associated Press. The newly appointed Minister to | United States from Canada, W. D. ridge, will present his credentials to President Hoover tomorrow and shortly | thereafter will return to Canada to | spend the Summer. | _The American Minister to Canada, | Hanford MacNider, called at the White | House today to complete plans for the | reception of Mr. Herridge. He expects | to return to his post at Ottawa tomor- | row afternoon or the next day. ’ Attends Catholic Session. | Rev. R. Rush Rankin, S. J., dean of | arts and sciences .at Georgetown Uni- | versity, is attending the twenty-elghth- | annual “convention of the National | Catholic Educational Association, which | opened today at Philadelphia. | "High dignitaries of the church, repre- sentatives of the numerous religious orders within the church and distin- guished laymen and educators from every State are attending the sessions, | which continue until Thursday. 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