Posts Tagged ‘University’
after hearing about the quake in virginia, i thought it was appropriate to upload the video i made a few years back for my college geology class, it’s about the new madrid fault line and the earthquakes that happened back in 1812, it’s got some interesting info in it, so please check it out and leave me a comment.
Duration : 0:6:41
What lies beneath the surface of the mighty Mississippi? Last summer Dr. Brian Waldron and Dr. Beatrice Magnani led a team of investigators searching for answers to the mystery of what lies beneath the surface of the Mississippi River. Does the river’s muddy water conceal hidden, as yet undiscovered faults? How does our aquifer, the source of our drinking water, interact with the Mississippi River?
Duration : 0:3:59
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http://en.wikipedia.org/wiki/Mississippi_River
The Mississippi River is the largest river system in North America. About 2,320 miles (3,730 km) long, the river originates at Lake Itasca, Minnesota, and flows slowly southwards in sweeping meanders, terminating 95 miles (153 km) by river below New Orleans, where it begins to flow to the Gulf of Mexico. Along with its major tributary, the Missouri River, the river drains all or parts of 31 U. S. states stretching from the Rocky Mountains in the west to the Appalachian Mountains in the east to the Canada–US border on the north, including most of the Great Plains, and is the fourth longest river in the world and the tenth most powerful river in the world. The current form of the Mississippi River basin was largely shaped by the Laurentide Ice Sheet of the most recent Ice Age. The southernmost extent of this enormous glaciation extended well into the present-day United States and Mississippi basin. When the ice sheet began to recede, hundreds of feet of rich sediment were deposited, creating the flat and fertile landscape of the Mississippi Valley. During the melt, giant glacial rivers found drainage paths into the Mississippi watershed, creating such features as the Minnesota River, James River, and Milk River valleys. When the ice sheet completely retreated, many of these ‘temporary’ rivers found paths to Hudson Bay or the Arctic Ocean, leaving the Mississippi Basin with many features ‘oversized’ for the existing rivers to have carved in the same time period. The Mississippi River Delta has shifted and changed constantly since the formation of the river, but the construction of dams on the river has greatly reduced the flow of sediment to the delta. In recent years, the Mississippi’s mouth has shown a steady shift towards the Atchafalaya River channel, but because of floodworks at the river’s mouth, this change of course—which would be catastrophic for seaports at the river mouth—has so far been held at bay. Some researchers believe that due to natural forces inherent to river plains, it is a matter of time before this event takes places and that it becomes more likely each year. Hundreds of Native American tribes have depended on the Mississippi River and its tributaries for thousands of years. Although they knew the river by many different names, it was the Ojibwe word misi-ziibi, meaning Great River, or gichi-ziibi, meaning Big River, that ultimately gave the river its present-day name. European explorers reached the mouth of the river as early as the 16th century and 17th century. The river throughout history has served as the border for New France, New Spain, and the early United States—its size and importance made it a formidable boundary as well as a strategic military location, and later, an important artery for steamboats to travel on. Writer Mark Twain was one of the most well-known figures on the river in this period. Even today, the river serves as partial boundaries for ten states, and most of its course can easily be seen on a political map. The Mississippi has also been known for great flooding events, especially in the 20th century which experienced up to four 100-year floods. This has led to the construction of hundreds of miles of levees along nearly the entire course of the river, although they have not always succeeded in preventing the greatest floods. Throughout its history, whether for Native Americans, explorers, or modern commerce, the Mississippi has always been a major navigation route through the center of North America. In the 19th and 20th centuries, despite its slow current and relative depth, a series of dams were constructed on the river, one of the most notable of which is at St. Anthony Falls in Minneapolis. These dams facilitate navigation for a steady stream of barge traffic carrying agricultural products from the fertile Mississippi Basin to the Gulf Coast, and like the Columbia River, most of the upper Mississippi is a cascade of reservoirs, as are many of its tributaries like the
Duration : 0:3:6
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Saturday May 14, 2011, 8:55 am
d States of Americaartist US states US flooding ciudadNIU American people expressions Laws of Disruption Authors@GoogleCiencia Northern Illinois University documental Mississippi River Illinois history weather Taio Cruz War of 1812 evolución Mississippi rips diplomacy educational dancing William Clark library IndiansC-SPAN planeta Tierra politics freestyle hombre doing laundry 
severe Nueva York Press TV mississippi; Illinois Mark Twain Mississippi Valley flood threat tornado flood Meriwether Lewis 17Larry Downes United States of Americaartist
Duration : 0:2:55
The University of Pennsylvania’s Douglas Jerolmack, assistant professor of earth and environmental science, and postdoctoral researcher Federico Falcini have been studying the flow of river water and sediment into large bodies of the earth’s waters. In this video, they argue that the mighty Mississippi River could be used to beat back the spread of spilled oil in the Gulf of Mexico.
Duration : 0:4:29
http://www.mda.state.mn.us Following the discovery of the destructive tree pest emerald ash borer (EAB) in a St. Paul neighborhood, the Minnesota Department of Agriculture (MDA) will begin an intensive survey to determine the scope of the infestation in the metro area.
Over the course of several weeks, MDA Plant Protection Division staff will examine ash trees on public and private property in the affected St. Paul neighborhood northeast of the intersection of Highway 280 and Interstate 94. The survey will begin close to the initial infestation, and then expand to other potentially affected areas including northeast Minneapolis and the Mississippi River corridor near the University of Minnesota. MDA personnel will be joined by tree experts from partner agencies including the Minnesota Department of Natural Resources (DNR) and University of Minnesota Extension Service.
Duration : 0:2:24
This is a trip we took to Rodney, Mississippi. You would never guess it now, but Rodney was once a bustling and thriving river port town. It missed becoming the state capital by only three votes. However, today it is pretty much in ruins. There are still a few people who live there but most of the town itself is abandoned. There are empty buildings, houses and churches lining the main street in Rodney. One of the churches still bears the scars of a Civil War gunboat attack and even has a cannonball stuck in the wall. Rodney is an absolutely amazing place to visit filled with history and reminders of those that lived before us.
Duration : 0:5:50
Echoes of Cry of the Marsh explores the issue of wetland restoration through the eyes of Bob Hartkopf, an ecologist and educator who has worked more than 40 years to revive these environmental assets.
Wetland restoration affects all people living in areas with industrial-scale agriculture, particularly in the upper Midwest and along the Mississippi River.
Hartkopf’s work and stuggle reminds us that we can find a healthy balance for our land, that we can strengthen our ecosystem, and that working for environmental change is possible.
Duration : 0:9:52
Echoes of Cry of the Marsh explores the issue of wetland restoration through the eyes of Bob Hartkopf, an ecologist and educator who has worked more than 40 years to revive these environmental assets.
Wetland restoration affects all people living in areas with industrial-scale agriculture, particularly in the upper Midwest and along the Mississippi River.
Hartkopf’s work and stuggle reminds us that we can find a healthy balance for our land, that we can strengthen our ecosystem, and that working for environmental change is possible.
Duration : 0:8:22