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Television is an audio visual device. It’s one of the most wonderful inventions of modern science. J.L. Beyard invented it. It’s based on concurrent photography & sound recording. It functions in various ways as a source of entertainment. By means of a television set we can hear all kinds of news & views about domestic & international affairs. At the same time we can see the people involved with them. It is a means of education as well as recreation. Television has demolished the barrier of distance & made us feel that we live & move as the members of the international community. But the satellite TV has an adverse effect on society. It has a tremendous power of corrupting people by telecasting indecent programs. Thus, while watching a television program we must beware of its corruptive influence. So, we should watch decent programs in order to get maximum benefit from it.

Systematic & formulated knowledge is called science. Science is the study of the nature & behavior of the physical & natural world & society through observation & experiment. It has made various inventions for the comfort & development of human knowledge. The inventions of various medicines, means of transport & communication, machineries are the various gifts of science. The various inventions of science have made our lives easy & comfortable. We are indebted to science for all the comforts of life, easy & speedy transport & communication & long healthy life. Science has also made destructive weapons like atom bombs & hydrogen bombs which can kill millions of people within a short time. Thus the gifts of science can be the worst curse. But science is not responsible for this. It’s the wicked brain of man which is responsible for this curse. Science proves to be a blessing if & when it is used properly. And it is a curse when it is m

Mobile phone is one of the wonderful wonders of modern science. It has added a new dimension to our life & to communication system. It is a telephone system that works without any wire. It can move easily & quickly from place to place. Through mobile phone, we can send manages to distance places, play games & sports, know about the time, solve the work of calculation, be aware of different kinds of news & views. At present the popularity of mobile phone is increasing. Many companies are also being set up for selling mobile phone. The price of mobile phone is also decreasing in comparison with the past people are being encouraged to buy a mobile phone. In a very single moment we can communicate with the people living in a very distance place. With its advantages, the mobile phone has some draw backs in disguise. Though the price of it is decreasing, per-minute bill is not decreasing. So everybody cannot posses. Scientist have recently discovered that mobile phone can c