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Microwaves and Radar
Microwaves and Radar - The 'radar' beams microwaves towards a distant object and receives the reflected signals. Since both the outgoing and incoming waves travel with the velocity of light therefore by measuring the 'time delay' in receiving the signal back,..
Microwaves and Radar
The 'radar' beams microwaves towards a distant object and receives the reflected signals. Since both the outgoing and incoming waves travel with the velocity of light therefore by measuring the 'time delay' in receiving the signal back, we can measure the distance of the object ..
Satellite Communication
.e., facsimile of printed matter or pictures) use a similar mechanism. In the case of intercontinental telecommunication, two or more satellites are linked together. High frequency radio and submarine cable systems have been widely used for long- distance overseas telecommunications. The ..
Polar Orbit
. 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 Satellites. Rem..
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