The question as it appears in the 05/15 edition of Specs & Techs from GlobalSpec:
You and your buddies are enjoying a brisk autumn evening at the beach. As the Harvest Moon begins to rise over the ocean, someone remarks it looks unusually large -- like a big, orange basketball emerging from the water. You don't have a basketball, but do have a football which you hold up to compare to the moon. Even at arm's length, the football looks larger than the moon. Which of these objects, held at arm's length, would look similar in size to the rising Harvest Moon: baseball; beer can; bottle cap; or aspirin tablet?
Thanks to AstroNut who submitted the original question (which we revised a bit).
(Update: May 22, 8:39 PM EST) And the Answer is...
It's the aspirin tablet! Astounding but true. If you don't have an aspirin handy, you can use the tip of your little finger: your pinky easily blots out the entire moon.
A full moon at the horizon does seem unusually large – this is the much-discussed Moon Illusion – but measuring against an aspirin shows that the moon's diameter is nearly constant regardless of phase, altitude, or time of year.
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