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    Re: A-12 Experiences
    From: Geoffrey Kolbe
    Date: 2020 Feb 9, 21:56 -0800

    Ed Popko wrote:

    Geoffrey,

    You described the bubble this way: tilt invarient. Explain a bit more.  

    Ed

    "Tilt invarient" means that if the celestial body is centred in the bubble and the sextant is tilted slightly, it will stay centred in the bubble. Both will move together in the visual field.

    Geoffrey Kolbe

       
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