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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... measure . The early Egyptian astronomers had been satisfied to measure the height of the stars against a figure seated at a certain distance in front of them — the heavenly body stood at his shoulder , at his ear , or at the crown of ...
... measure . The early Egyptian astronomers had been satisfied to measure the height of the stars against a figure seated at a certain distance in front of them — the heavenly body stood at his shoulder , at his ear , or at the crown of ...
237 ページ
... measure of the degree effected by Picard was carried out by triangulation , the method followed by the Dutchman Snellius in 1617 when he measured the distance and the bear- ing between Alkmaar and Bergen op Zoom . By solving the ...
... measure of the degree effected by Picard was carried out by triangulation , the method followed by the Dutchman Snellius in 1617 when he measured the distance and the bear- ing between Alkmaar and Bergen op Zoom . By solving the ...
288 ページ
... measured by Pytheas , 45 ' day's journey ' ( land ) , measure of , 52 , 126 ' day's sail ' , 51 , 52 , 126 ' day's voyage ' ( oars ) , measure of , 51–2 dead reckoning , in medieval times , 122 ; checked by observations , 158 ; effect ...
... measured by Pytheas , 45 ' day's journey ' ( land ) , measure of , 52 , 126 ' day's sail ' , 51 , 52 , 126 ' day's voyage ' ( oars ) , measure of , 51–2 dead reckoning , in medieval times , 122 ; checked by observations , 158 ; effect ...
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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