The most interesting thing  about inventors and inventions is that half of the inventors thought about their inventions when they were dreaming. Thomas Elva Edison made the first dry cell after when he saw a dream about it.

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An invention is a new thing that someone has made. The computer was an invention when it was first made. We say when it was "invented". New things that are made or created are called inventions. Cars and plastics are inventions that everyone knows. Inventions are made by inventors. See the fact file below for more information about inventors and inventions.