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History of Oceanography Mark/ Reagan Pinales/ Carrasco 3rd Period

Timeline created by mark_pinales in Science and Technology
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Event Date: Event Title: Event Description:
Evt100331115200425_small_square 4th Jan, 0150 Ptolemy 150 B.C. Ptolemy introduces latitude and longitude to the world map; he was the first to place a grid system on a map and use the same grid system for the entire planet.
Imagescalpzrzy_small_square 4th Jan, 0240 Erestothenes 240 B.C. Erestothenes determines the surface of the earth
Imagescatdrecu_small_square 4th Jan, 0325 Pytheas 325 B.C. Discovers arctic ocean
Imagesca23dr5l_small_square 4th Jan, 1350 Ferdinand Magellan the Portuguese navigator. Magellan was the first European explorer to cross the Pacific Ocean and the first to sail around the world.
History-franklin1_small_square Benjamin Franklin discovers Gulf stream He contributed to oceanography in the mid- to late 1700s by making and compiling good observations of ocean currents off the US East Coast.
Sonar_swath_top_small_square Sonar Echo sounders were first used for oceanographic studies during the epic German expedition exploring the South Atlantic in the mid-1920s aboard the Meteor.
Darwin_small_square CHarles Darwin Darwin publishes The Structure and Distribution of Coral Reefs, in which he suggests that coral atolls are the final stage in the subsidence and erosion of volcanic islands
Maury_small_square American naval officer and oceanographer Matthew Maury Wrote the first textbook on Modern Oceanography
Sir_small_square Sir William Thomson Sir William Thomson invents an operational wireline sounding machine. Modifications of this machine ultimately replace hemp-rope sounding methods. The wireline machines are faster to operate and significantly more accurate.
215px-jacques-yves_cousteau_small_square Jacques Cousteau Cousteau traveled to Canada to make two films on the Saint Lawrence River and the Great Lakes
240px-wcs_beebe_barton_600_small_square Bathysphere A bathysphere is a spherical deep-sea submersible which is unpowered and is lowered into the ocean on a cable.
Timespan Dates: Timespan Title: Timespan Description:
4th Jan, 1420
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4th Jan, 1446		 Henry The Navigator Sent explorers to find new lands, people, and wealth

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 James Cook James Cook contributed to oceanography by helping find many known islands, such as Hawaii,the Cook Islands,and many more.

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 Challenger Expedition They conducted 492 deep sea soundings, 133 bottom dredges, 151 open water trawls, 263 serial water temperature observations, and discovered about 4,700 new species of marine life.

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 FIrst modern bathymetric map Accurate, high-density soundings taken by the Coast Survey Steamer Blake in the Gulf of Mexico and Caribbean Sea lead to the first modern bathymetric map.
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