The Haven-finding Art: A History of Navigation from Odysseus to Captain CookHollis and Carter for the Institute of Navigation, 1971 - 310 ページ |
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... method of finding a reported reef ( I talk as a hydrographic surveyor - perish the thought that a prudent navigator would deliberately venture within miles of a reported danger ! ) is to make the latitude and then to search east and ...
... method of finding a reported reef ( I talk as a hydrographic surveyor - perish the thought that a prudent navigator would deliberately venture within miles of a reported danger ! ) is to make the latitude and then to search east and ...
189 ページ
... method of finding the ' true ' distance between Moon and star , and of his estimate of the Moon's motion , combined with the crudity alike of the observation and of contemporary timekeeping , sufficiently explain why the method , so ...
... method of finding the ' true ' distance between Moon and star , and of his estimate of the Moon's motion , combined with the crudity alike of the observation and of contemporary timekeeping , sufficiently explain why the method , so ...
299 ページ
... methods in the Mu'allim , 85 , 125-6 ; aids in 13th cent . , 97-8 ; mathematical basis in 13th cent . , 104 ; Italian contribution in 13th cent . , 104 ; as poet's theme , 116 ; medieval seamen's methods , 122 ; Indian , 123 ; by Pole ...
... methods in the Mu'allim , 85 , 125-6 ; aids in 13th cent . , 97-8 ; mathematical basis in 13th cent . , 104 ; Italian contribution in 13th cent . , 104 ; as poet's theme , 116 ; medieval seamen's methods , 122 ; Indian , 123 ; by Pole ...
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actually altitude angle appears Arab astrolabe astronomers azimuth bearings called Cape century chart-makers chih Chinese circle clock coast correct course course sailed cross-staff degree Dicuil difference distance drawn east east-west eight English equator error example fact fathoms French Gemma Frisius Greek Greenland Gulf harbour Hariot horizon Hvitserk Iceland India instrument instrument-maker island Jean Rotz John Dee king land later latitude leagues lodestone longitude magnetic compass magnetic needle mariners master mathematical measure Mediterranean Mediterranean Sea meridian method miles minutes monsoon Moon nautical navigation night north-east north-west Nuñez observations ocean Odysseus pilots Plate Pole Star port Portuguese position Pytheas quadrant quarter reckoning rhumb rhumb lines rock round rutter sailing directions sailors scale seaman ship ship's shore sight south-east south-west Strabo tide tion turned variation voyage William Borough wind wind-rose writing