Introduction: What is remote sensing?
             Remote sensing is basically the use of electromagnetic radiation to gather information about the earth. Remote Sensing involves gathering data and information about the physical "world" by detecting and measuring radiation, particles, and fields associated with objects located beyond the immediate vicinity of the sensor device(s). Through Remote Sensing we can tell the type of land/soil which lies in different parts of our Region/state/country to help us get a better understanding of how the earth is formed and how and what we can do in certain regions of land. The land type can be measured by either by satellite providing it's a clear day or by a plane which uses a microelectronic detector which picks up the radiation given off by each cell/particle in the soil and then characterized by the value of radiation it gives out.
             The history of remote sensing basically dates back 150 years age when the camera was invented, and didn't take long before the first aerial photo was taken in the 1860's from a balloon. And before soon taking aerial photos from balloons and kites were quite popular in the last two decades of the 1800's.
             Above: a photo taken in 1906 of San Francisco from a kite.
             By the First World War, cameras mounted on airplanes, or more commonly held by aviators, provided aerial views of fairly large surface areas that were invaluable for military use. The first rocket photo however was first taken in 1904 of a Swedish landscape but wasn't until after the second world war that they were eventually used effectively to take landscape photos using V-2 rockets acquired from Germany. This was the begriming of the use of satellites for remote sensing. In the early 1960's the first non-photo remote sensor was used on an unmanned space craft using television cameras. During the '60s, the fir
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