invention

Television

          Through history, there are many inventions appeared in the world. It’s changed our life. One of the big inventions is television. Television, regarded as one of the greatest scientific achievements of the 20^th century, attracts a large number of people every day. Since the television was invented, it has helped us improve and simplify the life.
          Television is the most recently developed means of communication. First, in addition to its function of an effective medium in which government’s polices and nation’s law are wide spread, television allows us to see as well as hear the another news. Second, being to see visual images has greatly influenced human being’s perceptions of world events. Every day television programmes change our perceptions of life on earth. Third, television entertains us with its special programmes which can satisfy every taste. Finally, It also teaches us a lot of important things. In some countries, television is used to teach pupils and students many useful lessons, especially before the seasons of examinations. Besides, education from the distance has been developed in many countries, which help to transmit knowledge to home schoolers living in remote areas. The television has become such an integral part of homes in the modern world that it is hard to imagine life without television.
            The television as we see it and know it today was not always this way. Let’s take a brief look at the history of television and how it came into being. In the late 1800s, Paul Gottlieb Nipkow succeeded in sending images through wires with the help of a rotating metal disk. Around 1907, two inventors used the cathode ray tube in addition to the mechanical scanner system to create a new television system. From 1923 till 1931 the mechanical television system saw many innovations. All the early television systems were black and white, with color television being invented much later on.