Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: equipotentials

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 Haskell

(919) 467-7610

Never ask someone what computer they use. If they use a Mac, they
will tell you. If not, why embarrass them?
--Douglas Adams