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Science has done great service to mankind. Science has ensured life to be safer, surer and much more comfortable than ever before. Science has helped man to make computers, artificial satellites and robots. Science has given the Americans a defense umbrella in space and it has given the Russians a permanent space station.

Russia, it is believed, will have an industrial city in space before 2050 A.D. This would be the height of achievement in the field of science and technology.

Science has also helped the common man in many ways. It has given him the modern machinery which has helped to increase the production of food grains. The famines which took the lives of millions of people in the past have now become a distant thing, except in some African countries.

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