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23 Cards in this Set
- Front
- Back
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The first scientific expedition to use an echo sounder was _______ . |
The Meteor expedition |
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Who created the first reliable chronometer used at sea? |
John Harrison |
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The oceans cover about ____ percent of Earth's surface. |
71 |
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Who is credited with the first measurement of the circumference of the Earth? |
Eratosthenes of Cyrene |
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What explorer undertook the first documented voyage around the world? |
Ferdinand Magellan |
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Matthew Maury is known primarily for ____ |
Being the first person to sense the worldwide pattern of surface winds and currents, and to base sailing directions on this knowledge.
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This man was the first to publish a reasonable accurate chart of an ocean current. |
Benjamin Franklin
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Polynesian navigators depended on what for accurate navigation? |
Stars, clouds and the flight direction of birds AND wave direction and shape
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The Age of Discovery was the time period in ocean exploration history when ___. |
the Western European world realized the vastness of Earth's water-covered surface.
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Average depth of the ocean? |
3.6 Km
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What is best for determining a ship's latitude? |
Magnetic compass
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Chinese ocean expeditions during the Ming Dynasty were intended for ____ . |
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Based on the scientific method, science supports the explanation of the natural world that ______ . |
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In 1768, the British Royal Navy assigned the _____, to assert the British presence in the South Seas and to search for a hypothetical "southern continent", signaling the start of scientific oceanography. |
HMS Endeavor
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Who is considered the "Father of Oceanography"? |
Matthew Maury |
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What scientist was associated with the HMS Beagle? |
Charles Darwin |
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What 3 things signaled the end of the Dark Ages and the beginning of the Age of Discovery? |
1. Introduction of the magnetic compass 2. Capture of Constantinople 3. An established School for Sailors |
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Who is considered to be the "Father of Oceanography"? |
Matthew Maury |
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The longitude that passes through Greenwich, England is called ___. |
The Prime Meridian |
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TOPEX/Poseidon is _____. |
A joint French - US satellite (and associated consortia) devoted to oceanic research. |
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Lat/Long of Arcata, CA |
40.8 deg N, 124 deg W |
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T/F: The deepest spot in the ocean is deeper than Mount Everest is high |
True |
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How did Erathostenes determine the circumference of the Earth? |
Used geometry; at the same time/day in 2 different cities, you could see to the bottom of the well and in the other place you could see a pole cast a shadow. Measured the height of pole and length of shadow, by this he could measure the angle away from the sun. Measured the distance between the 2 cities. Measured to about 1/50th of a circle. Multiplied that distance by 50 to find Earth's circumference. |
