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Van Veen Grab Sediment Sampler

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    ♪ [music] ♪
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    >[MAN] This is the Van Veen grab.
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    It's a surface sediment sampler
    designed for taking samples
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    on lake and riverbeds and large sumps.
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    It's a stainless steel construction.
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    This is a 1/2-liter model.
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    They also come in 2, 6, and 12 liters.
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    And the way it works is not
    dissimilar from a mousetrap.
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    We can just set it with this lever here.
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    And now we can lift the whole unit and
    we can lower it through a body of water
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    And then, as it touches the lakebed,
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    it releases,
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    and then we can lift up again...
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    and we get a nice, surface sample
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    and now we can pull it back
    to the water's surface.
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    All right, there she goes.
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    >[WOMAN] It kind of lowered farther that time,
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    so maybe it gathered some sediment.
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    [unclear]
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    >[NARRATOR] Oh, looking good.
    It has caught something.
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    >[WOMAN] Yeah, It feels a bit heavier.
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    >[MAN] There we go.
    >[WOMAN] Yeah.
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    ♪ [music] ♪
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    ♪ ♪
Title:
Van Veen Grab Sediment Sampler
Description:

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Video Language:
English
Duration:
01:53

English subtitles

Incomplete

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