sand ripple

  • 21road ripple — /ˈroʊd rɪpəl/ (say rohd ripuhl) noun a corrugation in a road made from gravel, clay, sand, etc., caused by the linear force created by a vehicle skipping the surface at intervals once a certain speed has been reached …

  • 22wind ripple — noun : one of many wavelike undulations produced on the surface of sand by wind and occasionally found in rocks of aeolian origin …

    Useful english dictionary

  • 23Dassault/Dornier Alpha Jet — Alpha Jet An Alpha Jet of the French Air Force Role Light attack jet and advanced trainer …

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  • 24sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …

    Universalium

  • 25Geology of the Capitol Reef area — [ Waterpocket Fold is the major geographic feature in the area of the park. This view is from above Capitol Reef Scenic Drive looking back at the west face of the broken and eroded fold.] The exposed geology of the Capitol Reef area presents a… …

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  • 26Geology of Alderley Edge — Infobox Mountain Name = Alderley Edge Photo = Stormy Point 1993.jpg Caption = Stormy Point Elevation = 183 m (600 ft) Location = Cheshire, ENG Range = Prominence = Coordinates = Topographic OS Landranger 118 Grid ref UK = SJ870760 Grid ref… …

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  • 27Everglades — is also the name of a city in Collier County, Florida.The Everglades are a subtropical wetland located in the southern portion of the U.S. state of Florida, comprising the southern half of a large watershed. The system begins near Orlando with… …

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  • 28Geography and ecology of the Everglades — The geography and ecology of the Everglades involve the complex elements affecting the natural environment throughout the southern region of the U.S. state of Florida. Before drainage, the Everglades were an interwoven mesh of marshes and… …

    Wikipedia

  • 29Tram controls — The following article describes the controls on electric, rather than steam trams.OverviewThe operation of trams is relatively simple. As trams run on rails, they do not require steering controls. However they do require controls for the smooth… …

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  • 30Sedimentary rock — Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah, USA Sedimentary rock are types of rock that are formed by the deposition of material at the Earth s surface and within… …

    Wikipedia