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    Re: Making an artificial horizon, and leveling thereof
    From: Alan S
    Date: 2011 Jan 22, 14:14 -0800

    George:

    I believe I've seen such a photo too, in Shore and Sextant or Sky and Sextant, by John Budlong, don't recall which.

    In any event, hereabouts in Pittsburgh, PA. with the temp. being around 10 F or lower, it's to damned cold, in my opinion, to be sitting or standing about, in the great outdoors, messing with a water filled AH, the above water freezing while one looks at it. It was sunny earlier today too, but very cold. To cold for yours truly.

    Alan
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