Evening Star Newspaper, April 19, 1931, Page 116

727247 OCIALIST/ Y ey c "/ T0BOLSK. 6°> ///R/E/Pfi/é/(fés Sl . S vk ovess UNION O e 4 /////// HIGH LIGHTS OF HISTORY I In 1900, A QUARTER-CENTURY ' AFTER ALEXANDER GRAMAM BELL INVENTED THE TELEPHONE THERE WERE 676,733 BELL JELEPHONES IN USE~. TME LAST THREE DECADES HAVE WITNESSED AN ENORMOUS JNCREASE IN THE NUMBER OF TELEPHONES AS WELL AS TRE: MENDOUS ADVANCES IN TlLE PHONE ENGINEERING - THE ADOPTION OF COPPER WIRE, THE SUBSTITUSTION OF A PAIR OF WIRES FOR A SINGLE WIRE, THE MULT®PLE SWITZHBOARD, THE UNDERGROUND CABLE AND THE LOADING COIL ARE FACTORS THAT HAVE CONTRIBUTED TO THE M~ & PROVEMENT AND EXPANSION l OF THE TELEPHONE SERVICE= ‘DIAL TELEPHONES AND MACHINE- SWITCHING APPARATUS ARE NOW BEING INSTALLED IN THE LARGER CTIES . . ., THE TELEPHONE PLAYS AN IMPORIANT PART IN MODERN RADIO BROADCASTING . SPECIAL TELEPHONE LINES CARRY MANY PROGRAMMES FROM THE MICROPHONE- TO THE BROADCASTING STATION To BE TRANSMITTED OVER THE AIR o®s “MoRE THAN THREE-FIFTHS OF THE WORLDS TELEPHONES ARE IN THE UNITED STATES, WHICH HAS SOME 20,000,000 PHONES, - ONE FOR. EVERY 6 AMERICANS . NEW YoRK CITY ALONE HAS MORE PHONES THAN ENGLAND, WHILE CHICAGO HAS MORE THAN FRANCE . JaNuARY 25,1915, ALEXANDER. GRAHAM BELL OPENED THE FIRST TRANSCONTINENTAL TELEPHONE- LINE OF THE BELL SYSTEM CONNECT- ING NEW YORK AND SAN FRANCISCO. “TRANSATLANTIC RADIO- TELEPHONE RECEIVING STATION .—/™* -TRANS ATLANTIC TELEPHONY WAS FIRST TRIED SUCCESSFULLY IN 19273 . FOouR YEARS LATER COMMERCIAL SERVICE BETWEEN NEW YORK AND LONPON WAS INAUGURATED . . The Story of the Telephone — Conclusion -Tue Atzmv OF BELL TELEPHONE OPERATORS HANDLES AN AVERAGE OF 65,000,000 CALLS A DAY (Copyright, 1931, by J. Carroll Mansfield) TELEPHONY WAS DEVELOPED, ESTAB- LISHING COMMUNICATION BETWEEN THE GROLIND STATION AND AIRPLANES HIGH N THE AIR . . . . * AMONG THE RECENT REMARKABLE- INNOVATIONS 1S THE TRANSMISSION OF NEWS PHOTOGRAPHS AND OTHER. PICTURES OVER THE WIRE— -THE GREAT MULTIPEE SWATCHBOARDS OF TODAY HAVE MORE THAN 4,000 MILES OF WIRE:, 2,000,000 SOLDER- ED POINTS AND> 15,000 TINY ELECTRIC SIGNALLIGHTS . .. ... . IN 1922 SHIP-TO-SHORE COMMUNICATION BY WIRE AND WIRELESS WAS BEGUN " LINKING THE STEAMSHIP "AMERICAT FAR AT SEA ,WITH OFFICES AND> HOMES ASHORE . . , . » ~ / TerevisioN (“DISTANT SEEING ), FIRST DEMONSTRATED> IN 1927 ,15 THE LATEST MARVEL PRODUCED BY TELEPHONE- ENGINEERS . WHO KNOWS WHAT TOMORROW WILL BRING FORTH — & T AR g;pw T—