TY - JOUR
AB - Notes on Science Topics Kelated to the War. SUDMARINE PROBLE3fS. The Naval Consulting Board has issued its first bulletin on “Tlie Submarine and Kindred Problems.” The following notes are mainly from that report. The latest submarine now in use has a surface speed of 17 knots, and a suhncrgcd speed of 10 knots. When near tlic surface the periscopc can be raised, an observation taken and the periscope lowered inside of 30 seconds. When the submarine is on surface with uncovered ~iatchcs, it takes four minutes to submerge. The Board is carrying three lines of investigation to combat the submariiic ~ncnacc. 1. ilIeans of discoucring and locating an approaching submarim. Aeroplancs arc the hest dcvisc found so far for detecting the sub- marine nhcn ncar shore. Sound recording devices are bcing testcd, water is an esccllent conductor of sound, and this field is prom isi ig. 2. Ilow to protect cargo slLips. Some use has been made of nets, guards, and screens, but their wight and cumbersomeness prcvciit cnsy Iin~idling of n vcsscl in ~,nn~icuvcri~~g in licavy seas. Xonc of tlicsc drvises yet has the approval of the Wavy Department. The best protcction of n ship is its speed 
TI - Notes on science topics related to the war
JF - Science Education
DO - 10.1002/sce.3730020206
DA - 1918-01-01
UR - https://www.deepdyve.com/lp/wiley/notes-on-science-topics-related-to-the-war-65xd8r2Dl6
SP - 352
EP - 357
VL - 2
IS - 2
DP - DeepDyve
ER -