Monday, July 27, 2009

Latitude & Longitude


DEFINITIONS:
Latitude, usually denoted by the Greek letter phi (φ) gives the location of a place on Earth (or other planetary body) north or south of the equator. Lines of Latitude are the horizontal lines shown running east-to-west on maps. Technically, latitude is an angular measurement in degrees (marked with °) ranging from 0° at the equator (low latitude) to 90° at the poles (90° N or +90° for the North Pole and 90° S or −90° for the South Pole).

Longitude, symbolized by the Greek character lambda (λ), is the geographic coordinate most commonly used in cartography and global navigation for east-west measurement. It is the angular distance measured east or west and usually expressed in degrees (or hours), minutes, and seconds, from the prime meridian, defined to be at the Royal Observatory, Greenwich, in England, to the meridian passing through another position on the earth's surface













( CONFUSING HUH? Jus read it twice and you'll get it.. ;-P )


But, what's with this now??
In my last post, i mentioned it like "these numbers down here" and gave the position of my home(12°49'43.17 N 79°42'17.95 E). It sounded little weird when i wrote like that but i just kept going with it. Later, last night, i googled it and came to know what these numbers are all about.

http://en.wikipedia.org/wiki/Latitude_and_Longitude



Dint we study this in our school?? geography?? (Gosh!!)