The National Geographic Magazine, Volume 70National Geographic Society, 1936 - Geography Indexes kept up to date with supplements. |
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Page 170
... SHIP THAT GAVE THE WRONG. A simple arrangement for distance find- ing is now in use at a number of stations , especially on the Great Lakes . The radio signal and the sound signal are synchro- nized to be sent at the same instant , and ...
... SHIP THAT GAVE THE WRONG. A simple arrangement for distance find- ing is now in use at a number of stations , especially on the Great Lakes . The radio signal and the sound signal are synchro- nized to be sent at the same instant , and ...
Page 171
... ship , possibly as much as 50 miles from her true position . This steamer receives the distress signals , but , having no radiocompass , is unable to tell the direction from which they come . She can only proceed to the incorrect ...
... ship , possibly as much as 50 miles from her true position . This steamer receives the distress signals , but , having no radiocompass , is unable to tell the direction from which they come . She can only proceed to the incorrect ...
Page 177
... ships during heavy fog and rain . 4 Photograph courtesy The Washington Post SERVICING A HUGE ". regular station ship was sunk by the liner Olympic in May , 1934 ( page 182 ) . Anchored in deep water and close to steamer lanes , a light- ...
... ships during heavy fog and rain . 4 Photograph courtesy The Washington Post SERVICING A HUGE ". regular station ship was sunk by the liner Olympic in May , 1934 ( page 182 ) . Anchored in deep water and close to steamer lanes , a light- ...
Contents
Midway Islands | 34 |
Civitavecchia Italy | 44 |
Down Idahos River of No Return By PHILIP J SHENON and JOHN C Reed | 95 |
Copyright | |
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