Satellites: A Great Invention
Have you wondered how important mobile phones, radio, TV, weather forecast are to us in our life? And some of these may be extremely important for us like TV, which is almost a part of our routine. But, has anyone noticed how much importance satellites have so that we can watch TV and listen to radio everyday. They are natural and artificial. Though natural satellite like moon are important, artificial satellites are important for us from the point of view by our work in daily life. We do lots of work and come to know about other things through TV and radio which work on satellites. Thus, they play an important role.
They are objects which orbit around earth in space. They may even be stationary satellites which are useful to obtain knowledge about a particular place above which the satellite is. They provide lots of information as they are designed for the purpose of doing a work which is practically impossible to do for a human being. They remain in space for years and function as per the commands given from the base station. These satellites are used for various purposes like knowing the topography of a place, knowing the climate at a place; these are also used for relaying signals from one place to another. They have the capacity to relay signals from end of the globe to the other end of the globe in a remarkably short period. Satellites are also used for astronomical purposes, where these satellites are sent away from the earth towards other planets any desired place in the space. They send the information about that place in space to the earth which is very helpful for scientists.
The satellites which play an important part in our routine life are the ones which send signals to various places on earth, as; mobiles phones, TV and radio work because of these satellites' functions and thus provide the desirable services. Such satellites are used all over the globe by many companies to provide various services to the users. Mobile phones work on the technology of receiving and sending signals. Thus, when we talk on a mobile phone it continuously send and receives signals from antennas which get signals from satellites. Thus, satellites are important for us even for communicating with an individual. TV and radio help us communicate with a huge number of people, where again satellite is the pedestal of the service.
They have many other functions which are very important and are looked upon by many scientists. Thus, satellites are useful for us in many ways and are important for us in our everyday life. They prove beneficial to a common man as well as a great scientist working for big projects on space. Thus, they cover the whole range of people under its services and become essential for everyone.
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