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Alex,

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!

Fred

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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