Re: Columbia

From: Stein A. Stromme (stromme@mi.uib.no)
Date: Sat Jun 07 2003 - 09:43:24 EDT

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    [George Murphy]

    | D. F. Siemens, Jr. wrote:

    | > But the piece was quickly decelerated by the air through which
    | > they were flying, so the relative velocity on striking the shuttle
    | > wing was close to the velocity of the craft.
    |
    | This would require that air resistance quickly kill off the
    | _upward_ velocity the foam would have had on breaking away. That
    | would take some time, & again one needs to know some numbers to
    | estimate whether there would have been enough time.

    George,

    It seems reasonable to me that air resistance would indeed be a
    stronger factor in this situation than the 1G of gravity you allowed
    for in your own computation. What is special about upward velocities
    with regard to air resistance?

    Stein

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