How does a 3D printer work? What stops a skyscraper from falling over? Where does a smart phone store information? Welcome to the world of engineering! Discover how the familiar machines and buildings in today's world are constructed, and how they function. How do scientists choose the right materials for the right job? Which scientific principles lie behind each machine or structure? Bas…
at a time when some people thought women could not be pilots, Amy Johnson flew halfway round the world on her own.