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    Re: Artificial horizon
    From: Fred Hebard
    Date: 2005 Feb 20, 14:02 -0500

    Unfortunately, I am thrust back once again to empirical observation
    that this is the case.  The observation about diffuse reflections from
    a non-black fluid is the most reasonable basis for an effective
    argument.  I expect diffuse reflections would decrease the contrast
    between the specular reflection of the object and the background.
    I haven't managed to spill the corn syrup yet!
    On Feb 20, 2005, at 1:41 PM, Alexandre Eremenko wrote:
    > Fred,
    > I still cannot say that I understand completely why
    > exactly
    > darkening the liquid improves reflection.
    > On Sun, 20 Feb 2005, Fred Hebard wrote:
    >> I was the one who recommended oil over corn syrup.
    >> The purpose is to
    >> darken the pan to improve reflection, as George
    > George gave another reason: to decrease reflection from the
    > bottom.
    >> The spilled oil is
    >> messy.
    > Or, yes! I know. Spilled corn syrup is also messy,
    > but the spilled mixture of both is really nasty:-)
    > Alex.

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