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  2. Debris fallout - Wikipedia

    en.wikipedia.org/wiki/Debris_fallout

    The basic mechanism of debris fallout is debris lofted by a tornado's updraft winds high into the atmosphere. [4] Charles E. Anderson completed the first study focusing on debris fallout on the F5 1984 Barneveld tornado, which produced a large survey revealing a trail of paper debris as wide as 23 mi (37 km) at 110 mi (180 km) from Barneveld and a roughly 85 mi (137 km) long path of heavy ...

  3. Rockfall barrier - Wikipedia

    en.wikipedia.org/wiki/Rockfall_barrier

    [3] [7] [8] These tests consist in normal-to-the barrier impacts in the center of a three-panel barrier by a projectile with translational velocity of at least 25 m/s and no rotational velocity. The response of a barrier may also be evaluated based on specific numerical models, developed based on a finite element method or a discrete element ...

  4. Foreign object damage - Wikipedia

    en.wikipedia.org/wiki/Foreign_object_damage

    Any debris being sucked in will have enough momentum that it will not make such a sharp bend, and will hit the screen on the upper left, and will be carried out to the left, getting blown overboard. Potential foreign object debris (in this case, a Scops owl ) found in the wheel well of an F/A-18 Hornet on a US aircraft carrier

  5. Kessler syndrome - Wikipedia

    en.wikipedia.org/wiki/Kessler_syndrome

    The debris poses a substantial risk to low-Earth orbit constellations, particularly those orbiting below 800 kilometers, and may remain in orbit for years, increasing the likelihood of collisions. This incident highlights ongoing concerns about space debris and the increasing risk of a cascading effect as more objects are launched into orbit. [22]

  6. Mist net - Wikipedia

    en.wikipedia.org/wiki/Mist_net

    Small passerines are typically captured with 16-30 mm mesh, while larger birds, like hawks and ducks, are captured using mesh sizes of ~127 mm. Net dimensions can vary widely depending on the proposed use. Net height for avian mist netting is typically 1.2 - 2.6 m. Net width may vary from 3 to 18 m, although longer nets may also be used.

  7. Ghost net - Wikipedia

    en.wikipedia.org/wiki/Ghost_net

    A sea turtle entangled in a ghost net. Ghost nets are fishing nets that have been abandoned, lost, or otherwise discarded in the ocean, lakes, and rivers. [1] These nets, often nearly invisible in the dim light, can be left tangled on a rocky reef or drifting in the open sea.

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