Re: equipotentials

[Ludwik Kowalski <kowalskil@MAIL.MONTCLAIR.EDU>]

Contour lines on a map refer to different
elevations. Suppose that your saddle region
was partially leveled to make a flat tennis court.
You are a map maker. Are you allowed to draw
two level lines on a map representing the court?
There are contour lines over lakes and oceans.
Ludwik Kowalski

On Saturday, Feb 21, 2004, at 11:34 America/New_York, Hugh Haskell
wrote:

> At 15:36 -0800 2/20/04, Bernard Cleyet wrote:
> > Can contour lines on a contour map cross?
> Certainly not ones representing different elevations, but consider
> this scenario: Two adjacent hills have a saddle ridge between them.
> Then the contour lines surrounding each hill that at the level that
> matches the elevation of the lowest point on the ridge line will
> touch at that point. Do they cross? I guess that depends on your
> point of view, but they certainly come together without violating any
> logical requirements.
>
> Hugh
> --
>
> Hugh Haskell
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