Who Invented What When by David Ellyard (Paperback, 2006)
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Who Invented What When covers over 500 years of inventions, from the first pocket-watch to the latest biotechnology, and all the big, and not so big, inventions in between. Arranged in chronological order, each new invention is described in context of its time and place and insights given into the inventor's life and motivation as well as the difference their invention made. With timelines and comprehensive indexes for easy reference. Who Invented What When is as entertaining as it is informative.