Great Inventions of the past century
Great inventions always had an impact on our lives. Sometimes great inventions improved productivity, sometimes they solved big problems and sometimes they simply turned an old idea to something totally new. Not in all cases the inventions were really helpful But most of the great inventions were so important that most of us cannot even imagine a live without them. They were just too crucial and had such an changing effect that some of these inventions were called disruptive innovations.
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