On Mon, Jul 20, 2009 at 3:11 PM, Sean Breheny<shb7@cornell.edu> wrote:
> I think that the problem here is that some people are defining
> "handspan" to mean the width or length of one's hand and others, I
> think, may be referring to the maximum distance from finger-tip to
> finger-tip with arms held wide open.
>
> Sean
>

That would be arm span or wingspan, and would give an extra order of
magnitude. Perhaps if the earth's circumference were 40,000m instead
of 40,000km....my arm span is only about 0.0018km

John
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