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  3. Placer mining - Wikipedia

    en.wikipedia.org/wiki/Placer_mining

    A long sluice box runs along the mine. [16] The sluice box was used extensively during the California gold rush for larger scale operations. When streams became increasingly depleted, the grizzly and undercurrent variants of the sluice box were developed. The grizzly is a set of parallel bars placed at a 45-degree angle over the main sluice box ...

  4. Euro container - Wikipedia

    en.wikipedia.org/wiki/Euro_container

    A Euro container, also called Eurobox, Euro crate or KLT box (from German: Kleinladungsträger, "small load carrier"), is an industrial stacking container conforming to the VDA 4500 standard. The standard was originally defined by the German Association of the Automotive Industry (VDA) for the automotive industry, but was subsequently adopted ...

  5. Sluice - Wikipedia

    en.wikipedia.org/wiki/Sluice

    A sluice gate. A sluice (/ s l u s / SLOOS) is a water channel containing a sluice gate, a type of lock to manage the water flow and water level. It can also be an open channel which processes material, such as a river sluice used in gold prospecting or fossicking. A mill race, leet, flume, penstock or lade is a sluice channeling water toward a ...

  6. Hydraulic mining - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_mining

    A man leans over a wooden sluice. Rocks line the outside of the wood boards that create the sluice. While generating millions of dollars in tax revenues for the state and supporting a large population of miners in the mountains, hydraulic mining had a devastating effect on riparian natural environment and agricultural systems in California.

  7. Sluice box - Wikipedia

    en.wikipedia.org/?title=Sluice_box&redirect=no

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  8. Spiral separator - Wikipedia

    en.wikipedia.org/wiki/Spiral_separator

    The device consists of a tower, around which is wound a sluice, from which slots or channels are placed in the base of the sluice to extract solid particles that have come out of suspension. As larger and heavier particles sink to the bottom of the sluice faster and experience more drag from the bottom, they travel slower, and so move towards ...

  9. Clip art - Wikipedia

    en.wikipedia.org/wiki/Clip_art

    Examples of computer clip art, from Openclipart. Clip art (also clipart, clip-art) is a type of graphic art. Pieces are pre-made images used to illustrate any medium. Today, clip art is used extensively and comes in many forms, both electronic and printed. However, most clip art today is created, distributed, and used in a digital form.