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Summer science quiz #3

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  • Summer science quiz #3

    Dear all,

    I'm glad to see that the feedback to these quizes remains encouraging,
    so I'll keep going until you beg me to stop!

    This week's question is another Aristotelian one, and also from his "On
    the Gait of Animals". I will give to you straight (via Farquharson's
    translation):

    "why do man and bird, though both bipeds, have an opposite curvature of
    the legs. For man bends his legs convexly, a bird has his bent
    concavely"

    Now, before an early bird chirps up, I will note immediately that the
    joint in question is the knee in man but the ankle in birds. However, I
    don't think that this fact alone answers the question ... does it?

    I look forward to your musings.

    Chris

    --
    Dr. Chris Kirtley MD PhD
    Associate Professor
    HomeCare Technologies for the 21st Century (Whitaker Foundation)
    NIDRR Rehabilitation Engineering Research Center on TeleRehabilitation
    Dept. of Biomedical Engineering, Pangborn 105B
    Catholic University of America
    620 Michigan Ave NE
    Washington, DC 20064
    Tel. 202-319-6247, fax 202-319-4287
    Email: kirtley@cua.edu
    http://engineering.cua.edu/biomedical

    Clinical Gait Analysis: http://guardian.curtin.edu.au/cga
    Send subscribe/unsubscribe to listproc@info.curtin.edu.au

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