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Discovery of the Mississippi by De Soto A.D. 1541 by William Henry Powell depicts Hernando de Soto and Spanish Conquistadores seeing the Mississippi River for the first time. Map of the French settlements (blue) in North America in 1750, before the French and Indian War (1754 to 1763). c. 1681 map of Marquette and Jolliet's 1673 expedition.
The river runs approximately 273 miles (439 km) long, in the U.S. state of Illinois. [12] This river was important among Native Americans and early French traders as the principal water route connecting the Great Lakes with the Mississippi. The Illinois River meets the Mississippi at Pere Marquette State Park, which is near Grafton.
Length (km) River flow at Discharge Mouth coordinates Mouth location ... Webster County, MS: Big Muddy River: Left 251 61 m 3 /s Grand Tower,IL: Centralia, IL ...
In thermal engineering, the logarithmic mean temperature difference (LMTD) is used to determine the temperature driving force for heat transfer in flow systems, most notably in heat exchangers. The LMTD is a logarithmic average of the temperature difference between the hot and cold feeds at each end of the double pipe exchanger.
In hydrology, discharge is the volumetric flow rate (volume per time, in units of m 3 /h or ft 3 /h) of a stream. It equals the product of average flow velocity (with dimension of length per time, in m/h or ft/h) and the cross-sectional area (in m 2 or ft 2). [1] It includes any suspended solids (e.g. sediment), dissolved chemicals like CaCO
ΔT (timekeeping) the difference between two time scales, Universal Time and Terrestrial Time, which results from a drift in the length of a day The interval of time used in determining velocity The increment between successive nerve impulses
As the river changed course, the natural flow of freshwater and sediment changed as well, resulting in periods of land building and land loss in different areas of the delta. This process by which the river changes course is known as avulsion, or delta-switching, and forms the variety of landscapes that make up the Mississippi River Delta. [7]
The shifting river delta at the mouth of the Mississippi on the Gulf Coast lies some 300 miles south of this area in Louisiana, and is referred to as the Mississippi River Delta. Rather, the Mississippi Delta is part of an alluvial plain , created by regular flooding of the Mississippi and Yazoo rivers over thousands of years.