EUH 3931 Lecture : expansionnotes.pdf
3 Mar 2014
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1575: technological advances facilitated sea travel, advances in astronomy helped in charting locations at sea, instruments. 1300): pointed to the magnetic north making it easier to determine direction. A number of instruments were used to determine latitude by measuring the altitude of celestial bodies: quadrant (ca. 1450): used to determine latitude by measuring the altitude of celestial bodies: mariner"s astrolabe (ca. 1480): used to determine latitude by measuring the altitude of celestial bodies: cross staff (ca. 1550): used to find the latitude by measuring the altitude of the. 1450: lighter, faster ships than the spanish. Galleons and much better suited for exploration along the african coast: could sail into the wind. Lateen sail and rope riggings: enabled sails to be quickly and efficiently maneuvered to take advantage of wind power. Axial rudder (side rudder: provided for improved change of direction.
