24 items | 8 visits
mariella dorr's List: Earth Science
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Aug 24, 12
From its churning, sometimes stormy atmosphere to its shifting tectonic plates, Earth can be a dangerous place. Earthquakes, floods and other natural disasters killed more than 780,000 people between 2009 and 2009, according to the UN International Strategy for Disaster Reduction Secretariat. Millions more were injured or displaced. No one knows how the next decade will shape out, but some areas have more reason to worry than others.
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Sep 18, 12
Overview
This lab uses a robust model of the carbon cycle to give you an intuitive sense for how carbon circulates through the atmosphere, biosphere, oceans, and crust. This model is similar to ones presented by the Intergovernmental Panel on Climate Change.
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Sep 30, 12
"The video catches the speed and power of these mudflows remarkably well. Note also the pulsing behaviour that they show, which is characteristic of these types of landslides, and also the very long wavelength standing waves that the flows created."
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Sep 30, 12
"Time and time again, we're reminded of nature's beauty. It's hard to believe, but these photos of real landscapes, not abstract paintings. They are actually aerial shots of streams, alive with motion and color, finding their way down the ashen sides of volcanoes in Iceland."
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Sep 30, 12
Ecologically, Africa's tallest peak is a world in miniature. On what other mountain can you journey from dry fields and farms into steaming jungles, then up through exotic heaths and moorlands to an alpine desert and finally a glaciated summit? -
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Jan 06, 13
"Fun Educational Water Cycle rap with matching words and pictures! Free to watch and learn from by teachers, students or anyone else!"
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Jan 06, 13
"Flying in a motorized paraglider over one of the most diverse continents in the world, George Steinmetz captures the stunning beauty of Africa's landscapes and people. His pictures show not only the spectacular patterns of the land, but also the potential and hope that the continent encompasses.
Steinmetz made his first trip to Africa while in college, and spent two and a half years hitch-hiking across the continent.
"I didn't have a goal to change Africa. I just wanted to marinate in it," he said." -
Jan 20, 13
"Short-segment video lectures to give rudimentary background information on the Earth and plate tectonics to teach how earthquakes happen and how they are studied. The video lecture series was intended for middle-school Earth-science teachers, but principles can be understood by the general public and can be used in introductory undergraduate classrooms."
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Jan 22, 13
Most common minerals are identified visually by taking into account color, transparency, luster,
crystal shape, cleavage, bruising, mineral habit, and mineral associations. This knowledge is
acquired by observing many examples of how minerals may vary. This collection of mineral
photos has been designed to assist in this learning process. Emphasis is on commonly encountered,
typical mineral specimens.
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