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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... astrolabe , and to ask him to come over and see it . It was much too precious to lend , for a medieval astrolabe was an elaborate and costly instrument , beautifully made , which served for time- keeping , as well as for all ...
... astrolabe , and to ask him to come over and see it . It was much too precious to lend , for a medieval astrolabe was an elaborate and costly instrument , beautifully made , which served for time- keeping , as well as for all ...
166 ページ
... Astrolabe we judged that we were 17 ° distant from the equinoctial , and therefore had the height of the Antarctic Pole in 17 ° . ' The surviving copy of the Regiment has a declina- tion of 17 ° on April 28th , but the calendar is only ...
... Astrolabe we judged that we were 17 ° distant from the equinoctial , and therefore had the height of the Antarctic Pole in 17 ° . ' The surviving copy of the Regiment has a declina- tion of 17 ° on April 28th , but the calendar is only ...
174 ページ
... astrolabe , and in making necessary calculations , as they ought to be . She therefore laid it down that all pilots should put themselves under instruction , and they were forbidden to ship as pilots , nor were merchant - owners or ship ...
... astrolabe , and in making necessary calculations , as they ought to be . She therefore laid it down that all pilots should put themselves under instruction , and they were forbidden to ship as pilots , nor were merchant - owners or ship ...
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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