OCS 1005 : Oceanography Notes For Quiz On Jan 29
15 Mar 2019
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Some statistics: 71% of the earth"s surface is ocean, the average depth of the ocean is 3800m (12,465ft) Eratosthenes calculated the size and shape of the. Latitude was easy once the size of the earth was known, eratosthenes drew evenly spaced lines parallel to the equator, though his placement was not always right. 1728, it used a spring instead of a: who were the early explorers? pendulum, polynesians 20,00 years ago, vikings 100 ad, chinese 1400 ad. Undertook planned expeditions utilizing many new technological advances like the central rudder and compass: european explorers. The basque sailors of spain were fishing for cod off newfoundland in the 1300"s. Columbus sails to n. america in 1492, nearly 200 years later. Prince henry of portugal: promoted and taught navigation. First" european to visit n. american though he mistook his location for india. Ferdinand magellan: his crew circumnavigated the globe in 1522. James cook: over the course of 3 voyages, he mapped.
