remote sensing satellites earth's surface

"Remote Sensing" can be defined as obtaining information about an object by observing it from a distance and without coming to actual contact with it. Infact when we see an object and understand what it is, our eye is sensing that object remotely. This ..

can be defined as obtaining information about an object by observing it from a distance and without coming to actual contact with it. Infact when we see an object and understand what it is, our eye is sensing that object remotely. This is a broad definition. But we generally us..

The cameras used on Landsat satellites are extremely complex. They use a process called remote sensing, in which the cameras scan the earth to look for different patterns of radiatio..

Communication Systems..

Scientists who investigate weather phenomenon are called meteorologists. To study a particular feature, may require an observation from a larger area. By combining great number of observations and analysing them by computers it is possible to get information about a large weather system. Satel..

Find the work done in lifting a 2000 pound satellite from an orbit 3000 miles above the earth's surface to another orbit 4000 miles above the earth's surface. (Radius of earth is 4000 miles) => 57.14 × 10 4 mile-pounds or 45.71 &time..

. There are weather satellites which monitor wind speed, cloud temperature and height, sea temperature, etc. This data helps to predict climate changes. Spy satellites use powerful telescopes to watch for potential threats. There are also Remote Sensing ..

In the second century AD a Greek writer named Lucian wrote a story about a trip to the moon. He did not even know how far the moon was but his story revealed that the idea of space travel was certainly not new. Much later in 1865, the French novelist Jules Verne wrote a story in which his travelers..

(the portion of the atmosphere closest to the ground). Frequencies below the HF range travel around the curvature of the Earth, sometimes right around the globe. These ground waves, or surface waves as they are called, are one of the two original means of beyond- the- horizon pr..