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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199 ページ
... Gemma Frisius , John Dee and Leonard Digges who turned these mathematical propositions to the use of the professional engineer and the seaman , the instrument - maker and the artisan . The Nautical Square was made up of four quadrants ...
... Gemma Frisius , John Dee and Leonard Digges who turned these mathematical propositions to the use of the professional engineer and the seaman , the instrument - maker and the artisan . The Nautical Square was made up of four quadrants ...
245 ページ
... Gemma - Frisius of Louvain , who was in the service of the king of Spain , thought it worth while to point out that a trustworthy clock , if carried to sea , would solve the difficulty of finding the east- westing on the new oceanic ...
... Gemma - Frisius of Louvain , who was in the service of the king of Spain , thought it worth while to point out that a trustworthy clock , if carried to sea , would solve the difficulty of finding the east- westing on the new oceanic ...
290 ページ
... Gemma Frisius , 195 , 197 , 199 , 203 , 204 , 209 ; observation of Pole Star , 219 ; on clock for longi- tude , 245 Genoa , 97 , 107 , 142 ; early charts from , 114 geometrical square , incorporated in astrolabe and quadrant , 159 ...
... Gemma Frisius , 195 , 197 , 199 , 203 , 204 , 209 ; observation of Pole Star , 219 ; on clock for longi- tude , 245 Genoa , 97 , 107 , 142 ; early charts from , 114 geometrical square , incorporated in astrolabe and quadrant , 159 ...
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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