AUDLIG's As the Cocky flies

To: Canberra Birds <>, birding-aus posts <>
Subject: AUDLIG's As the Cocky flies
From: David McDonald <>
Date: Thu, 24 May 2001 21:55:29 +1000
>From AUSLIG's newsletter - regards - David
As the Cocky flies
Calculate the direct distance between two locations in Australia using
AUSLIG's new interactive tool.
More details @: or go direct to
the calculator at

                  As the Cocky flies

                  Now you can calculate the direct distance between two
locations in Australia
                  using AUSLIG's new interactive tool, As the Cocky

                  It uses a method known as "the great circle distance
between points", which is
                  useful for a wide range of projects, including: radio
propagation; gliding,
                  ballooning and sailing; plant and animal studies (for
example, how far a mob of
                  kangaroos travel in search of feed); sales and
marketing statistics; school
                  projects; and scientific studies.

                                Why not try it now? Click on the Cocky
at left to calculate a

                                The calculation is based on spherical
trigonometry, and
                                assumes that one minute of arc is one
nautical mile, and one
                                nautical mile is 1.852 kilometres.

                  Great circle distance varies from actual road
distance. For instance, if you
                  were to travel along the Birdsville Track between
Marree and Birdsville, you
                  would cover 517 km. The great circle distance, however
(as the Cocky flies) is
                  only 435.4 km.

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