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There are many great inventions of man for example from a ancient time ---from a wooden wheel to a cart and in today's world from electronic ---a little SIM to computers LED tvs and refrigerator ......in medicinal ---from a medicine to big x-ray and many others machine...these all things are the great inventions of humans ....without them life would be difficult or impossible and all these things are because of Science
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Books and technology is the mans best invention in the world
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