Necessity is the mother of inventions; I think this saying is trying to say that we invent things because someone in the world needs it. Some examples are the cotton gin made by Whitney; the cotton gin changed the life of America because it made it so one person could do what used to take one hundred people to do. Another is the airplane made by Orville and Wilber Wright. It changed the world because it connects people through flight. These are just some of the inventions that changed people’s lives there are many more.
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