Page 65 - The Miracle of Migration in Animals
P. 65

HARUN YAHYA






























                Every spring, millions of shorebirds leave their wintering grounds in West
                Africa and fly non-stop to Europe’s East Atlantic coast—their first stop. (B)
                From there, they head for their breeding grounds in Siberia. (C) In the cour-
                se of this flight, they follow the shortest route between two points on a
                sphere, known as the orthodrome.

                tually he will arrive at town C. In fact, these two different routes
                correspond to concepts long known in seafaring. The shortest dis-
                tance between two points on a sphere like Earth, as shown above,
                is termed "orthodrome." The journey from one point to another
                using a compass follows a different route, and this is termed "lox-
                odrome." A loxodrome cuts each meridian with the same angle,

                and the meridians join at the poles. That is, they are not straight
                lines. A journey following a loxodrome is more oblique than the
                "straight" road and therefore takes longer.
                    Pedro Nunes first drew a loxodrome in 1550 and believed it
                was the shortest distance between two points on the Earth’s sur-
                face. In other words, a loxodrome and an orthodrome were





                                             63
   60   61   62   63   64   65   66   67   68   69   70