History of Oceanography Kanesha Moore 5th

  • 275

    Eratosthenes 276-192 BC first determinedthe world’s circumference

    noticed that the well was totally
    illuminated at noon and made several
    mathematical assumptions and calculations
    based on distances of two cities, angles, and
    circumference of a circle.
  • 325

    Pytheas worked out amethod for determining latitudes

    Responsible for contributions to early
    navigation methods that we still use today.
  • Jan 5, 1430

    Prince Henry the navigator exploring experations

    Recognized the oceans’ importance to trade and commerce and established a center of learning for the marine sciences.
  • Benjamin Fraklin maps the golf stream

    It helped trade and shipping from America to Europe.
  • Matthew Maury studied navigation, meteorology, and wind currents

    He published the Wind and Current Chart of the North Atlantic, which showed sailors how to use the ocean's currents and winds to that reduced the length of ocean voyages
  • Challenger Expedition

    The Challenger began its voyage by crossing the Atlantic four times, discovering the Mid-Atlantic Ridge in the process. It then visited Africa, and Antatica.
  • SONAR to navigate and communicate at sea

    Was really important during WWII to find other ships at sea