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Arachnid Aeronautics

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Sally B. Patterson

Spiders use silken draglines that serve as parachutes or “balloons” to help them remain airborne as they take off for new territory — perhaps over distances as great as hundreds of kilometers. Because the insect-eating creatures could play an important part in natural agricultural pest control, it would be helpful for researchers to understand how far they travel and what affects their dispersion. Scientists at Rothamsted Research Ltd. in Harpenden, UK, have reported research in which they have tracked spiders in action and also have developed synthetic models made of a diode attached to a...Read full article

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    Published: August 2006
    Glossary
    diode
    A two-electrode device with an anode and a cathode that passes current in only one direction. It may be designed as an electron tube or as a semiconductor device.
    diodelight detectorsLighter SideRothamsted Research Ltd.Sensors & Detectors

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