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quarta-feira, 24 de agosto de 2011

History of Navigation Timeline : How It's Made : Science Channel






Good evening friends and friendies!


See how interesting this brief timeline on the History of Navigation I just found!


Fernando Costa




15th Century - Mariners Astrolabe

The mariner’s astrolabe let sailors find their latitude while traveling far away from the 
sight of land.
A mariner would hold the astrolabe up at noon so the sun shone through its two sights. The sailor would then read the scale to determine the sun’s altitude and consult a table of the sun’s daily declination to determine the...


History of Navigation Timeline : How It's Made : Science Channel

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