Scientists define satellite as any object that revolves around another object. Moon is an example, which is orbiting around the earth, however, for ordinary man satellite refers to a man made space station that is moving around the earth in the space.
Man made satellites are sent in to the space for five different purposes.
1:- Monitoring the weather of our heavenly planet.
2:- Guide the airplanes, ships etc.
3:- Mapping and observing earth surface.
4:- Broad casting television transmission.
First weather satellite was sent in to space in 1960 (Tiros 1). Since then many satellites have been sent to the space and the information sent by them is shared by the whole world through radio, TV and internet. Weather forecast has become a part and parcel of TV and radio news.
Navigation satellites help aeroplanes, submarines and ships in navigation. They can easily determine their position on earth with the help of a navigation satellite in space. The most popular of all is GPS or global positioning system. It was developed by US military but now it is being used by many other countries and institutes also.
Satellite televisions have become a household. We need a receiver (dish on the roof) to receive this type of transmission.
Man made satellites are sent in to the space for five different purposes.
1:- Monitoring the weather of our heavenly planet.
2:- Guide the airplanes, ships etc.
3:- Mapping and observing earth surface.
4:- Broad casting television transmission.
First weather satellite was sent in to space in 1960 (Tiros 1). Since then many satellites have been sent to the space and the information sent by them is shared by the whole world through radio, TV and internet. Weather forecast has become a part and parcel of TV and radio news.
Navigation satellites help aeroplanes, submarines and ships in navigation. They can easily determine their position on earth with the help of a navigation satellite in space. The most popular of all is GPS or global positioning system. It was developed by US military but now it is being used by many other countries and institutes also.
Satellite televisions have become a household. We need a receiver (dish on the roof) to receive this type of transmission.
No comments:
Post a Comment