The Haven-finding Art: A History of Navigation from Odysseus to Captain CookHollis & Carter, 1956 - 295 ページ |
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133 ページ
... Moon or close at south and by east . And if ye turn in the Downs go not near Goodwin than 9 fathoms , nor not near the Breaks than 5 fathoms . ' The references to the Moon are to be understood in relation to the universal method used ...
... Moon or close at south and by east . And if ye turn in the Downs go not near Goodwin than 9 fathoms , nor not near the Breaks than 5 fathoms . ' The references to the Moon are to be understood in relation to the universal method used ...
134 ページ
... Moon was four days old , a place with ' high Moon south - west- north - east ' would have high tide when the Moon was west - east . Thus the seaman had to carry in his memory the age of the Moon , unless he could understand and afford ...
... Moon was four days old , a place with ' high Moon south - west- north - east ' would have high tide when the Moon was west - east . Thus the seaman had to carry in his memory the age of the Moon , unless he could understand and afford ...
189 ページ
... Moon will have made on that day in an hour , which is 30 minutes , and this gives 24 hours as the time in which the Moon will be in conjunction with the star . And thus tomorrow at 10 o'clock at night the Moon and star will be in ...
... Moon will have made on that day in an hour , which is 30 minutes , and this gives 24 hours as the time in which the Moon will be in conjunction with the star . And thus tomorrow at 10 o'clock at night the Moon and star will be in ...
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actually altitude altura angle Arab astrolabe astronomers bearings called Cape captain century chart-makers chronometer circle clock coast correct course course sailed cross-staff degree difference distance east east-west eight English Ephemerides equator equinoctial error example fact fathoms French Gemma Frisius Hariot horizon Iceland instrument instrument-maker island Jean Rotz John John Dee king land later latitude leagues lodestone longitude magnetic compass manual mariners master mathematical mathematicians measure Mediterranean Mediterranean Sea meridian method miles minutes Moon nautical navigation night north-east Nuñez observations ocean Odysseus pilots plain chart Plate Pole Star port Portuguese position Pytheas quadrant quarter reckoning rhumb rhumb lines right ascension Rotz round Royal rule rutter sailing directions sailors scale seaman ship ship's sight south-east south-west Strabo Sun's Thomas Hariot tide tion triangle turned variation voyage William Borough wind wind-rose writing