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Show WIRELESS MAKES ! : NiGATl SAFE PHILADELPHIA. Nov. 21 Adml-I ral V H. dullard, director of naval communication service. In a paper read before the Franklin Institute here. Bald wireless telegraphy is mak- log navigation simple and sate. "Thero will be a time when ships j will be without chronometers and will be In a contant wireless touch with New York until they reach the Brit- -ish channel." said Admiral Dullard. This Is not a dream. It la near at hand "By means of the radio compass i ship can get her bearings when she tails for it. anywhere along the coast of the United States. This Instrument has already saved ships which were beaded straight for the shore. " The depth of water under the ship can now be accurately determined b ihe hydro-phone, which works on the reflection from the ocean bottom of the sound of the ship's propeller. By this device shallow water can be i avoided and even the proximity of Iceberg detected. Ships also can communicate with each other by un-derwater. un-derwater. waves, sent out by oscillators. oscillat-ors. "By means of a cable laid along , the bottom of New York channel and I energized with current, a pilot, blind-' folded, guided a destroyer safely to port, never getting more than 5(1 yards from the able. The wav9 sent out i by the cable were detected in tele-phone tele-phone receivers, one on each ear. tell-lug tell-lug him whether h was right or left of the guiding cable. "Hurricanes can be detected by sensitive sen-sitive radio telephones, and even the general direction of storms arc felt - on wireless receiving apparatus The I time Is now sent broadcast by coastal Stations and by the time given for certain longitudes, the ship can tell Its -location. Weather warnings and location lo-cation of wrecks, derelicts and Icebergs Ice-bergs are given out."' . OO |