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Earth Science There are 99 products.

Earth Science
  • Secchi Disc
    Secchi Disc

    This 20 cm ABS plastic disk is weighted and supplied with a 14 m line. When lowered in a water column until the pattern is no longer distinguishable, measurement of the retrieved line gives the depth to which light can penetrate in support of biological activity.

    This 20 cm ABS plastic disk is weighted and supplied with a 14 m line. When lowered in...

    This 20 cm ABS plastic disk is weighted and supplied with a 14 m line. When lowered in a water column until the pattern is no longer distinguishable, measurement of the...

    15020

    This item is currently not in stock, please call for availability.

    .
    $45.00
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  • Wind Powered Generator
    Wind Powered Generator

    Six fully adjustable vanes describe a 36-cm diameter circle and are coupled to the generator through a 4:1 drive train in this unit designed to study the interrelationship of aerodynamics, motion, and electrical power production. DC output is monitored with a variable intensity bulb or with a voltmeter connected to the binding posts provided.

    Six fully adjustable vanes describe a 36-cm diameter circle and are coupled to the...

    Six fully adjustable vanes describe a 36-cm diameter circle and are coupled to the generator through a 4:1 drive train in this unit designed to study the interrelationship of...

    800

    In Stock

    .
    $329.95
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  • Water Sampler
    Water Sampler

    No tangled lines with this efficient, economical sampler. A single line deploys and triggers the collection of a 1.5 liter water sample from any convenient depth in lakes, rivers, or ponds. The flow-through design allows a valid sampling for measuring temperature and water quality. A 14 meter line is supplied.NOTE: Volume may vary slightly. It is recommended that you verify the exact volume of your bottle prior to use.

    No tangled lines with this efficient, economical sampler. A single line deploys and...

    No tangled lines with this efficient, economical sampler. A single line deploys and triggers the collection of a 1.5 liter water sample from any convenient depth in lakes,...

    15010

    In Stock

    .
    $75.00
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