On Sep 4, 5:55 pm, Martin <m...@address.invalid> wrote:
> On Thu, 4 Sep 2008 02:35:49 -0700 (PDT), "Paul {Hamilton Rooney}"
>
>  wrote:
> >On Sep 4, 2:48 pm, Ignatios Souvatzis 
> >wrote:
> >> Martin wrote:
> >> > On Wed, 3 Sep 2008 13:33:43 퍭, Ignatios Souvatzis
> >> > wrote:
> >> >>(...) We must get an old-fashioned globe, then.
>
> >> > or a boat?
>
> >> Alas, my boat isn't suitable for ocean trips.
>
> >Alas, even if it were, it wouldn't help to answer the question. It
> >requires a globe, not a boat!
>
> Not having an accurate globe didn't stop Magellan :o)
> --
>
> Martin

But he didn't know where he was going, and when he got there he didn't
know where he was, and when he returned he didn't know where he'd
been!

But more seriously - he couldn't know whether he was sailing in a
straight line unless it was N-S or along the equator.
Now we have it cracked - computers and GPS.