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Fancy a whiffle?


knocker

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Posted
  • Location: Camborne
  • Location: Camborne

    When a goose comes in to land, sometimes, if you are lucky, you will see it do a “whiffleâ€. Approaching the water, it twists and turns to spill air from its wings — often ending up completely upside down in the process.

     

    What is perhaps even more extraordinary than an upside-down goose is that throughout its contortions the goose’s head stays still and upright.

     

    Now scientists have investigated the ability of geese and swans to keep their heads still while flapping and being buffeted in the wind, and have found that they appear to have a neck mechanism like a car suspension.

     

    http://www.dailymail.co.uk/sciencetech/article-3211281/Whiffle-wind-Upside-geese-stay-focused-landing-using-internal-suspension-necks.html

     

    The role of passive avian head stabilization in flapping flight

    http://rsif.royalsocietypublishing.org/content/12/110/20150508

     

    2BABA79000000578-3211281-Experts_have_lo

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    Posted
  • Location: Derbyshire Peak District South Pennines Middleton & Smerrill Tops 305m (1001ft) asl.
  • Location: Derbyshire Peak District South Pennines Middleton & Smerrill Tops 305m (1001ft) asl.

    Seen this many times. Happens very fast as knocks vid shows. Im sure I've seen Ducks do this to.

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    Posted
  • Location: Newbury, Berkshire. 107m ASL.
  • Weather Preferences: Summer:sunny, some Thunder,Winter:cold & snowy spells,Other:transitional
  • Location: Newbury, Berkshire. 107m ASL.

    Whiffling always good to see, often better to see that than the load of waffle I hear and see elsewhere. A good article there Knocker, Thanks.

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