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THE EVENING WORLD, THURSDAY, MA Y 4, 1922.
I l 41 1 1 8 tor : v THE EVENING WORLDS SERVICE COLUMN, By Capt. Robt.ScoacldWood. (D. F. C M. C Croix da Guerre with four palms) formerly Commander 167th Squadron, Royal Air Forces.) NAVAL EXPERIMENTS. Tho Mare Inland Naval Ease on the raolflc Coast has been conducting some experiments recently with a view to the elimination of static, "muih" and harmonic Interference and affects on radio reception. Static has proba-bly been given the least attention because It la not one of tho elements that cause much trouble In tho Pacific regions. In this respect radio on the West Coast has a decided advantage over the Atlantic regions which are practically Impreg nated with static during the warm months of the year. It will be recalled' that this particular kind of interfer ence Is confined to sections which are frequently visited by electric storms. The experiments, however, with the harmonic and mush effects have been particularly successful and a new type of current transformer has been de veloped. This hew transformer, when installed with low and hlch power equipment, has given most ra.tlsfu.c tory results In eliminating the Inter ference that at times threatens tne re ceptlon and transmission of signals. A them lo their hearts' content. Then breaking at tho same time nnd using tho nlr only In. a different way. tho avlnto'-a staged their big show, nnd last but nut least, the Post Master General of tho United States Announced the beginning of tho National Postal Week starting on May 1, nnd like the other two Interests, used the air, which la Incidental to radio communication, to call upon the people of tho Nation to pay heed to postal Improvements. We are glad that the air Is free or there might bo some fireworks over tho pri ority claim to tho week. also bo applied to a circuit In which complete ryclrs of alternation take place on one side only of tlic,zcro line. K. P. P. "What Is the difference be. tween ruilld frequency and audio fin- qiicncy or ro they one and the samc7" Answer mere is a great difference be tween these mo. Itadlo freauenry re fers to the vibrations that are present our wnien csnnoi do Heard or detected without ths aid of a super-sensitive In strument, which Is constructed to de tect nnd pass on Tor amplification these vibrations. Audio frequence vlrbratlons are those which can be heard. QUESTIONS AND ANSWERS 31 m Michigan's Easy Credit Terms 'Ida Weeklj Buys 150 la Merchandise l.OWeeklj Bute 173 In Merchandise 1.50 Weekly Itiiri (100 In Merchandise S.50 Weekly Ituys 1300 In Merchandise And Vp la I'roportlsn. Fan "Will you please tell me why It la possible to use an Insulated cop per wire to recelvo radio signals? By Insulated I mean a wire with a rubber and cotton cover over the copper." Answer The reason that an Insulated wire can be used Is that electro mag netic waves, better known as wireless or radio vibrations, have the peculiar property of being ablo to pass through any and all substances. These waves will pass through a mountain as easily as Lhev will nftfm fhrmlffh Itia thin short time ago a number of tests were I lAve.r of nihber nn thn ntitaldn nf vmir wiwireuH nun iu co-upcrutiun u '""i aerial, it is presumed that the sub commercial sumonn in uie vitimiy wiu i stanco is Known ns lumlnlferous ether, a summary of tne reports snowed mat these stations experienced no inter-1 Thomas iTn1l"vimt i th manning jerenco wnuo uio nig" power tv i i or aperiodic as applied to radlo7 It the naval, station were In operation. I appears very often In text books, but iror uie uninitiated, -musn - is Known I without explanation." Answer Anerl an oscillations other than the true wavo0(jc Is another word for untied. A clr of transmission. It acts very much aslcut having no definite tone period Is an echo does In destroying the sounds I id to be aperiodic: One having suf- Uiat rouow it. Actually, u ta causca i ncicntly Meti res stance as lo nnt ta? a short, sudden, choppy vibration natural oscillation Is also under this occurlng in the aerial currcnta of the heading, A circuit having no tuning arc transmitters. It has formed one of condenser or tuning Inductance coll. tho ctoud of heretofore radio Impos- Thin word uatmllv rfrw in nnn.... slbllltlea. being placed In the same class dilatory circuit, although the term may u rmiio uiiviucr who Vl luwa somethings which is unmanagable and almost impossible to tune out. Harmonica also belong to the same group of "uncontrollablcs" and although a great deal of tlmo and study have been spent in studying their actions lit tle so far has been done in the direc tion of their elimination. Harmonics are the Incidental waves which differ In length and frequency to the actual or true waves that are feeing trans mitted. Harmonic effects are most I noticeable, and are usually identified with continuous wave operations. In I an earther aerial the first harmonic! Is three times tho natural wave fre quency or one-fifth of the wave length and the third' is 'seven times the na tural frequency and one-seventh of the wave length of tne aerial. Fort wood,. the United States Army Radio Station, at Bedloe'a Island, in New York Harbor, which operates on uie exclusive reserved wave length of 1.IS0 meters, is well known In this vicinity (or Its harmonics. REGULAR RADIO 8ERVICE ACROSS THE PACIFIC. A regular direct radio traffic Is main tained, without the aid of the famous relay system, by the navy through I the dally operations of Its Cavlte, sta tion to Honolulu, using a 630 KW arc transmitter, even San Francisco has I heard Cavlte' s messages and when It I does, Honolulu Is 'notified and does not relay tho messages as Is customary In transmitting messages 7,000 miles across the Pacific. AIR SERVICE RECRUITINO BY RADIO. Twenty-eight .recruits hare been en listed In the United States Air Service through the efforts of radio. Tho re cruiting service at llitchell Field. New York, has adopted tne plan of making its recruiting apptals with radio as tho vehicle for carrying their message to the young blood of the country. The result of their first effort' was over whelmingly successful and the re cruiting .office start have been snowed under with applications from all over the East In response to the appeal. Al ready twenty-eight members have been enrolled. POSTAL,' WEEK APPEAL MADE BY RADIO. The week beginning May 1 seems I to be very popular with every line of I endeavor and Das been selected by some very wldly diversified interests ns the proper time to launch their cam- I paigns of getting before the public. Naturally we took to the idea of Music Week coming with the early days of I spring and radio broadcasting pro grammes have been braced up and have again taken on some .of their old- time aspects and everybody Is enjoying I C. W. W nronx "I have a single tube detector amplifier set which I con structed according to the specifications given In yoilr column on April 15 and 17. I have been fcble to get very good re ception except for a slight hum which seems to grow stronger every day. Can you tell tne what my troublo ls7" Answer You will find somewhere In your hook-up a loOso connection. Co over every connection on the Instru ment, Including the variable condenser and tighten them up. This way you will undoubtedly find the scat of your trouble. X. Y. 7. "Will you please tell me the natural wave length of my aerial which Is a two wire Inverted '11 UO feet long, with a leadln 42 feet long and a ground JO feet long?" Answer Tho natural period of this aerjal is about 300 metres. W W Z (New York) 360 Metres. 1.40 P. M. The Housewife's Hour: Eliza Q. Fotherglll, home economist and efficiency expert of the Chtlds chain res taurants. 2.40 P. M. Cello solo, Dlpool; "W. TSd wnrd Hence at tho piano, (a) The Swan, Saint Sacns; (b) Minuet, Bee thoven. S.40 P. M. Amplco recital: "Sym phonic Pathlquc," Tschalkowsky: (a) Waltz Movement 2d: (b) March Move ment 3d; (c) The Finale. 4.40 P. M. Vlctrola recital, reproduc ing tho love scenes from "La Boheme;" (a) "Rudolph's Narrative;" b) "My Name !s Mlml," (c) "Thou Sweetest Muldcn." 10.30 P. M. Choral progrnmmo given by the llrooklyn Scottish Select Choir, thirty-six mixed voice! J. T. Knox, ill rector. I. choruses, (n) 1 In II to the Chief; (b) Scotch Hue: 2. bnrltOnc Holos; 3, ihoniscs, (a) Awake Asollan Lyre; (b) Love's Old Sweet Song; 4, soprano solos; S, choruses, (a) Scotland Yet; (b) Will Ye No' Come Back; 6, tenor solos; 7. choruses, "llnltelujali Chorus From the Messiah," Handel. W G I (MedforcJ Hillside) Mass. 360 Metres. 7.30 P. M. Bedtime story for the chil dren, "Tho Story of Tolly Wog" (Little Folks' Magazine), read by Miss Eunice L. Randall. 8 P. M. Charles F, Atkinson presents Shield's famous speech on "Irish Aliens," also "Success" (Bayard Tay lor.) 8.20 P. M. Miriam M. Brown, mando lin selections: Overture, 'Northern Lights" (Welill): "Intermezzo" from "Cavallerla Rustlcana" (Mascagnl.) Violin selections: "Covatlna" (Rohm), "From tho Canebrako" (Gardiner.) Helen D. lllgglns, piano accompanist. 8.45 P. M. The famous Bohemian trio: Miss Marie Zelezny, violin; Miss Florence Colby, cello; Miss Marie Sy nott, piano. Selections: ''Souvenir" (Drydla), Miss Zelezny, accompanied by Miss Colby and Miss Synott; "Melody In F" (Rubcnstcln), Miss ColbyA accom panied by Miss Synott; "Ride of the Valkyries," Miss Synott; "Sextette from Lucia," trio. Jnmcs Myers In selected songs, accompanied by Bohemian trio. K D K A (Pittsburgh) 340 Metres. 1 3.30 P. M. and at 16-mlnuto intervals thereafter Baseball scores, 7 P. M. Baseball scores; news. 7.30 P. M. Bedtime story for the chil dren. ' 7.45 P. M. Government market re ports and a report of the New York Stock Exchange. 8 P. M. Baseball scores: ""Why Every Automobile Owner Should Insure," hy Harry C. Gilchrist, innnnger of the American Casualty Company, Pitts, burgh, "The Oilvcrslly of the Second Clin nee," by Y. A. Ncal. tilucntlonal director of tho Hast Llbeity Brunch uf tho Y. M. . A. 8.30 P. M. Music. 10.55 to 11 P. M. Arlington time slg nals; musical programme by Mme. Estar Emma Franco, operatic soprano; Mar garet Crousc, accompanist; qulnlcllo conccrlanto of the Pittsburgh Flute Club: Joseph Dctllovnnnl. flute: W. J. Loflnk, piano; M. 1-3. Cervcrls, flute: Dr. John M. Jllcrholzcr, manager, flute; A. J, Fnlvo, piccolo. W J Z (Newark) 360 Metres Features for tho day: Agricultural reports at 12 M. and C I. M. Arlington official time at 12.55 to 1 P. M. nnd 10.55 to 11 P. M. Shipping news nt 2.05 P, M. " Weather reports nt l A. M 1 P. M. 6 P. M. nnd 11.01 P. M. Music every hour from 11 A, M. to 6 P. M. 7 P. M. "Jack Rabbit Stories," by David Cory. 7.30 P. M. "Chlncso Gordon," by Col. H. O. Prout, second In command at tho tlmo of Gordon's, 111 fated expedition, 8 P. M. Concert by tho Columbia University Glco Club. 8.30 P. M. Concert by Ralph W. Tag, baritone: Miss Isabel Spring, accompan ist. Programme: Prologue from "Pa gllaccl," Leoncavallo; "Tho Seekers," Ralph W. Tag; "For A That and A That." poem by Burns, music by Ralph W. Tag; "Gunga Din," poem by Kip ling, music by Ralph W. Tag; "Young Tom O' Devon," Kennedy. 9 P. M. Recital by Miss Lucille Col lette, violinist: Miss Hoffman, ptanlstc, countesy of Edward G. Simon. 9.45 P. M. Piano recital by Ralph Relchenthal, a well known recording artist and recently student of the Dm rosch School of Musical Art. New York. Programme: "Perslanna," Whlto; "Ca nadian Capers," Chandler-White-Cohen; "Moon River," Lee David; "Goodby, Shanghai," Meyer; "Kitten on the KeyB," Confrey; "Ka-lu-a," Kern. SPRING REFVRNSWNG SALEl Linoleum Rug 6x9 Ft. Special at 5.75 Eiceptlonal quality; sells ordinarily for 113.0J. Pay 50c Weekly We are offering the home furnishers of New York and Brooklyn bargains unheard of here tofore. You can refurnish and brighten your home for the summer at small cost in this sale. Pay $5 on $100 Purchase Come in, see the beautiful furniture for the dining room, bedroom and living room, and the remarkable rugs that we are offering at such ridiculously low prices during our Spring Refurnishing Sale. MICHIGAN'S COMPLETE HOME OUTFITS n ROOMS Completely Va Furnished A 4 ROOMS Completely Furnished 2.00 17Q ut,.li. He $1.80 1IO 50 Weald, LtO nnoMc r I'fll'J. Completely SEP .w loo-50 "ir I Weekly lUU Greenpoint Bed Open sn sreount with this wonderful natlonslly ad vertised "Greenpoint" metal bed In Ivory, Walnut or Mahogany finishes, with two-inch posts and one-Inch fillers. In all sizes, exactly as Illustrated, A bargain that cannot be duplicated anywhere in New York to-oay. 6.95 'This Week Only on Deposit of Pay SOc Weekly .00 $0.00 DEPOSIT DELIVERS THIS Golden Oak Hach elor's Chlfforobe. n 76 Spring Refurnish- jH''8 log Sale Prle Also In American Walnut' and beautifully finished In Mahofany. Open an Ac count With This Bissoll Carpet Sweeper, 9.00 Pay 50c Weekly Kroehler Daveno Bed This nationally advertised Davenport Bed, very spe cially priced. May be Instantly converted Into double bed. 39 .75 This, Week Only on Deposit of Pay 75c Weekly .50 Imported Direct from France for RADIO ENTHUSIASTS Headsets (4000 Ohms) For Uo With Radio Receiving Sett At a Very Low Price $9.94 Admirable mechanical con struction and splendid ap pearance, "fcUMment, 33th Street, Front, u u J-3.0O DEP08IT DELIVERS THIS 3-plcce Colonial Library Suite; upholstere-l In mule- rf IK. kin; durably constructed and finished. A rtM'' bargain at Spring Refurnishing Sate Price."'1' InfBSl Kill VJ.0O DEPOSIT D THIS White Maslcold Refriger ator. Whlto enamel ed Inside & outside.. ELIVERS Enameled 39 -95 f lft.00 DEPOSIT DELIVERS THIS 4-plece Dining w rtoom Suite, consisting of Extension Table. Buffet. Chlnn Closet and Servlnc Table. Queen Anne Period design. American Walnut, 1 i"T f ne $199.76, without Serving Table. Spring I CL .0 Refurnishing Sale Price lae. Herald (taoar Sew York 1.50 DEPOSIT DELIVERS THI8 Knglander Double Da-Bed, conch by ni7 nn d a y , I comfortable X iuU bed at night DIALS, BAK ELITE, CABINETS A complete stock of parts to build your own Radio bet on hand. Beacon Radio & Electric Co. 246 Greenwich Street. Near Park Place, Naw York. L1VRR" THIS wonderful Antique Ivory Adam Teriod Toilet Table, tinl.tr ed with five coats of baked enamel. Hprlnc He- 1 17 QC furnishing I ? Mais Price. 1 .50 D E 4 POSIT DE LIVERS THIS Golden Oak Colonial China Closet. Dust proof construe (Ion. Spring Rtfurnlsh I n g Sale Price. 2995 $1.00 DEPOSIT DELIVERS THISLIbraryTable, beau tifully finished in Mahogany ami strongly constructed. Spring Refur- nlshlng Sale T7'"" Price " $1.00 DEPOSIT DELIVERS YOUR Hoos ler, the great c s t kitchen c o n v enlence In the world. See tho Spe cial Apart ment Model. Prices Start at 39-95 Pay $1.00 Weekly JONES RADIO SETS $29.00 Employ U. Vuper-sensillie Armttrosc Circuit (tht Standard In Radio) ino are Itceoswt tlisrtjndar. Jones Radio Laboratories Ul Meant St. Brnklja, S. X. jciepnoat i.ii-it Miayeut. 35.00 Records FREE uith a standard S1C0.00 Model mm Thf highest class talking machine (n the world. $160-0 Delivered on $C v Ueposit of Your Own Terms Within Reason m 1 ,-;- aisivla. sjr Uni,ljr piDQUCliOn JUklasoo KilfM Co., 70 V'mtn it., .v. V. OPEN MONDAY AND SATURDAY EVENINGS IS M! A il 1 ii i ii ii 1 1 iii i m ui ii inksSBBVSBBBaMAlBBBBl SBsK W K h M W M W fsSSSSSSysff Vnt xjWfc" CnssssssssssssHsaUSsHP Tf-UsUI 2174 Third Ave. 420 Tremont Ave. Open an Account With a beautiful sturdy Lloyd H.iby Carriage. Kor our Great Spring Refurnishing -. g nc Sale Prices lrl,ja Start at iJll Ml 3l IM 111 mmmmmmmmmmmmm I jua High qualityrieets lowprice at the Reeves Stores. Buy your.groceries at Reeves forfiner foods, lower prices and better service. One of the 275 Reeves .Grocery Stores is in your neighborhood. DdMonte Preserves rryjAMnbenyfisach ricotvr PineaMle DdMonte Corn Larqe qlsss 25 can Boi-den's Evaporated Milk BLUE ROSE cans 325 Jello Assorted Flavors : Fancy Rice 3 packages for 251 2 Mueller's 31acamnir Spaghetti. 1 pacRaees jur rVsson Oil pint Cans 20 PAN CY Columbia Rived Salmon Pansy Brand A can 20 i 1 DEL MONTE ASPARAGUS, f- large can OOC DEL MONTE C L I N Q OQ PEACHES, large can &JC DEL MONTE SLICED PINEAPPLE, large can 0JC DEL MONTE SPINACH OO large can ' auOC DEL MONTE BAKED C BEANS, can Oc ARGO BRAND CORN- J? STARCH,' 1 lb. package Oc CHALLENGE BRAND j SAUERKRAUT, large can. . LDC BENT'S QUALITY Q COOKIES, lb JC BENT'S FAMOUS .BLUE 1 f HILL COOKIES, package.. J.UC STAPLE BRAND OPaOC LOGANBERRIES, can X &Dc . FRANCO-AMERICAN f SPAGHETTI, large can.... 1UC SAFETY MATCHES, doren 1 Q boxes : . . OC SUNKIST CALIIiOKNIA ORANGES, 7 for aJC GULDEN'S MUSTARD. WELCH'S GRAPE JUICE, Q1 pt. bottle dlC HARTLEY'S MARMALADE, OJ? 1 lb. crock JC O'CEDAR OA POLISH 77. '.'.".tt:.. dAjc LEA & PERRINS WORCES- OC TERSHIRE SAUCE , 6iJC SNIDER'S CHILI SAUCE, OA bottle UC LUX, Q package . UC R I N 8 O , S package OC LIFEBUOY SOAP, cake . DC MINUTE TAPIOCA, - ( package JLUC WHITE ROSE TEA, Of 'a-lb, package OXC as n fca v l