"Rob Perkins" wrote in message
...
On Tue, 09 Dec 2003 14:34:32 -0800, Jim Weir wrote:

Horsepuckey. I can get a student to guesstimate TEN TIMES faster when we
are
using statute miles.

Right back at ya. I can guesstimate TEN TIMES faster because the scale
for nautical miles is laid down every few inches on the chart.

But that's only because we already decided to use nm for navigation, of
course.

There's a clue in the word we use: "navigate" and the fact that we
originally used naval techniques using sextants and things (and sailors do
have good reasons for using nm). Is that it?

-- David Brooks