'PigeonBot' brings aircraft closer to feathered-flight

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  • #253743

    eridani
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    @eridani

    https://techxplore.com/news/2020-01-pigeonbot-aircraft-closer-feathered-flight.html

    “Aerospace and materials engineers can (now) start rethinking how they can design, manufacture and control materials and wings that morph as deftly as birds do,” said David Lentink, an assistant professor of mechanical engineering at Stanford and the senior author of two papers describing the results in the journals Science and Science Robotics.

    All four-limbed animals, including dinosaurs, evolved from an ancestor that had five digits at the end of its limbs, which became hands, paws, flippers, or wings over time.

    Modern birds retained three digits, or fingers. By studying the pigeon wings in a wind tunnel, the researchers found that wrist and finger action provided fine control over feather placement, wing span, and area.

    In flight tests, manipulation of the wrist and fingers initiated stable turn maneuvers at tight angles, which the researchers said provided some of the first evidence that birds primarily use these digits to steer in flight.

    Jesus: Hey, Dad? God: Yes, Son? Jesus: Western civilization followed me home. Can I keep it? God: Certainly not! And put it down this minute--you don't know where it's been! Tom Robbins in Another Roadside Attraction

  • #253768

    Enthusiast
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    • Total Posts: 3,428
    @enthusiast

    Fascinating! I never would have believed this could be accomplished.

    I would like to remind you that U.S. health insurance companies do not contribute anything to health care. They are only a PARASITIC middle man receiving an undeserved cut of "FREE MONEY".

    Me

  • #253791

    ThouArtThat
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    • Total Posts: 2,027
    @thouartthat

    @eridani

    Hi eridani,

    Just what we need, new flying methods to spy on citizens. This time disguised as birds.

    TAT

    "Those who make peaceful revolution impossible will make violent revolution inevitable."
    - John F. Kennedy

    "In a Time of Universal Deceit - Telling the Truth Is a Revolutionary Act."
    - George Orwell

    "They must find it difficult ... Those who have taken authority as the truth,
    Rather than truth as the authority."
    - Gerald Massey

    "It is no measure of health to be well adjusted to a profoundly sick society."
    - Jiddu Krishnamurti

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