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  2. Hjulström curve - Wikipedia

    en.wikipedia.org/wiki/Hjulström_curve

    The Hjulström curve, named after Filip Hjulström (1902–1982), is a graph used by hydrologists and geologists to determine whether a river will erode, transport, or deposit sediment. It was originally published in his doctoral thesis "Studies of the morphological activity of rivers as illustrated by the river Fyris. [1]" in 1935. The graph ...

  3. River - Wikipedia

    en.wikipedia.org/wiki/River

    Rivers flow downhill, with their direction determined by gravity. [6] A common misconception holds that all or most rivers flow from North to South, but this is not true. [6] As rivers flow downstream, they eventually merge to form larger rivers. A river that feeds into another is a tributary, and the place they meet is a confluence. [4]

  4. Water cycle - Wikipedia

    en.wikipedia.org/wiki/Water_cycle

    The diagram also shows how human water use impacts where water is stored and how it moves. [ 1 ] The water cycle (or hydrologic cycle or hydrological cycle ) is a biogeochemical cycle that involves the continuous movement of water on, above and below the surface of the Earth .

  5. York River (Virginia) - Wikipedia

    en.wikipedia.org/wiki/York_River_(Virginia)

    The York River was formerly known as the Pamunkey River by the Native Americans.Colonists of the Virginia Company in the 17th century first called it the Charles River. On the north bank (the Middle Peninsula), in what is now Gloucester County, the chief of the Powhatan Confederacy maintained Werowocomoco, one of two capitals of the paramount chiefdom at the time of European contact before 1609.

  6. Yellow River Map - Wikipedia

    en.wikipedia.org/wiki/Yellow_River_Map

    Observing this, Houtu is said to have created and studied the River Map, after which she sent divine messenger birds to Yu to tell him to open up the river to the east instead. Yu's new dredging was a success, the flood waters drained into the eastern sea, and Yu's former dredging project toward the west was named the "River Wrongly Opened". [5]

  7. Flash lock - Wikipedia

    en.wikipedia.org/wiki/Flash_lock

    The last flash lock on the Thames was Hart's Lock (also known as Eaton Lock), [4] which lasted until 1937, while on the Lower Avon, the structure of Cropthorne Water Gate lasted until the reopening of the river to navigation in 1961, although it had not been used for navigation for many years before that.

  8. Ohio and Erie Canal - Wikipedia

    en.wikipedia.org/wiki/Ohio_and_Erie_Canal

    Specifically, the bridging of the Scioto and Miami river valleys required raising the canal to such an elevation that water from neither river could be used as a source. As a result, the canal was divided into two sections: the Ohio and Erie Canal, which connected Cleveland to Portsmouth via the Licking Divide and the Scioto River Valley, and ...

  9. Gold dredge - Wikipedia

    en.wikipedia.org/wiki/Gold_dredge

    Gold Dredge, Klondike River, Canada, 1915 The Yankee Fork dredge near Bonanza City, Idaho, which operated into the 1950s. A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large, multi-story machines built in the first half of the 1900s.

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