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Seven small inventions that changed the world in a big way here are smartphones, skyscrapers, spacecraft and modern technology which seems mind-bogglingly complex, but beneath the surface can be beautifully simple. Award winning Shard engineer and broadcaster Roma Agrawal deconstructs our most complex feats of engineering into seven fundamental inventions - the nail, spring, wheel, lens, magnet, string and pump. Each is a wonder of design, the result of many iterations and refinements, and together they have enabled humanity to see the invisible, build the spectacular, communicate across vast distances, and even escape our planet. Roma shares the stories of the remarkable and often unknown scientists and engineers who made them possible in this masterclass in storytelling. Shortlisted for The Royal Society Science Book Prize in 2023 and which 'appeals to the nerdy side of just about all of us' as Jane Garvey said on Radio 4. 302pp, illustrated paperback.