Explains the origins of weights and measures, how they have changed over the years, and how they can be used to measure different things. Includes projects and questions.
Robin Kerrod writes for young people on all aspects of science and technology, and on astronomy for a wider audience. A former winner of the COPUS (Committee on the Public Understanding of Science) Junior Science Book Prize, he was a major contributor to the DK Science Encyclopedia. He has also co-written The Way Science Works for DK, and is one of the authors of The Way the Universe Works.