Some of humanity's mightiest engineering achievements are small in scale--and, without them, the complex machinery on which our modern world runs would not exist. In Nuts and Bolts, structural engineer Roma Agrawal examines seven of these extraordinary elements: the nail, the wheel, the spring, the magnet, the lens, the string, and the pump.

Tracing the evolution from Egyptian nails to modern skyscrapers, and Neanderthal string to musical instruments, Agrawal shows us how even our most sophisticated items are built on the foundations of these ancient and fundamental breakthroughs. She explores an array of intricate technologies--dishwashers, spacesuits, microscopes, suspension bridges, breast pumps--making surprising connections, explaining how they work, and using her own hand-drawn illustrations to bring complex principles to life.

Alongside deeply personal experiences, she recounts the stories of remarkable--and often uncredited--scientists, engineers, and innovators from all over the world, and explores the indelible impact these creators and their creations had on society. In preindustrial Britain, nails were so precious that their export to the colonies was banned--and women were among the most industrious nail makers. The washing machine displayed at an industrial fair in Chicago in 1898 was the only machine featured that was designed by a woman. The history of the wheel, meanwhile, starts with pottery, and takes us to India's independence movement, where making clothes using a spinning wheel was an act of civil disobedience.

Eye-opening and engaging, Nuts and Bolts reveals the hidden building blocks of our modern world, and shows how engineering has fundamentally changed the way we live.

Technology and engineering surround us. From HUGE things, like spaceships and skyscrapers, to much smaller things like the toaster in our kitchen, and the shoes on our feet. But all of these things only exist because of seven small inventions: the nail, the wheel, the spring, the magnet, the lens, the pump, and ... string. And each of these inventions has a fascinating story to tell.

Travel through centuries of history, through ancient Egypt, along the Silk Road, across the high seas, and even into space, and discover how each of these seven small inventions came to be, how they work, and how they changed the world forever. Find out how it's thanks to the potter's wheel that the International Space Station exists, and how the same nails that built pirate ships hold together the tallest buildings in the world.

In this children's illustrated adaptation of her adult book, Nuts and Bolts, award-winning engineer turned bestselling author Roma Agrawal makes STEM accessible, intriguing, and aspirational, and encourages children to be endlessly curious about the 'things' that make up our world.

The book also spotlights inspirational inventors from history, with sections on Josephine Cochran, Gladys West, Norm Mason, George Cayley, Robert Hooke, Rebecca Struthers, Takayanagi Kenjiro, Jagadish Chandra Bose, Ibn al-Haytham, Antony van Leeuwenhoek, Louis Jacques Made Daguerre, Frederick Douglas, Katherine Burr Blodget, Hamai Vyarawalla, John Gibbon, and Mary Hopkinson.

Roma Agrawal is a British-Indian-American award-winning engineer, author and TED speaker who worked on London's iconic Shard skyscraper among many other projects. A tireless promotor of engineering careers for women and BIPOC, she grew up in Ithaca, New York and is a US citizen. She attended Cambridge Ohio elementary school, Immaculate conception school (Ithaca NY), and Cayuga heights elementary school (Ithaca).

This striking book explains the feats of engineering behind the world's most impressive architectural marvels.

From skyscrapers that reach astonishing heights to bridges that span deep and wide rivers, the world is filled with awe-inspiring structures. But how do they work?

Meet the extraordinary people who challenged our beliefs about what's possible, pioneering remarkable inventions that helped build the Brooklyn Bridge in the US, the Pantheon in Italy, the Burj Khalifa in Dubai, the Shard in England and the Sapporo Dome in Japan. Discover the ingenious methods engineers have come up with to enable us to build underground, underwater, on ice, and even in space.

With text written by award-winning structural engineer Roma Agrawal and detailed full-color illustrations by Katie Hickey, this book provides unique and illuminating perspectives of the world's most incredible constructions. How Was That Built? is a perfect gift for curious kids who want to learn more about construction, architecture, science, technology, and the way things work.

This children's picture book also serves as a fascinating companion to the author's adult nonfiction book Built: The Hidden Stories Behind our Structures, winner of the AAAS/Subaru SB&F Prize for Excellence in Science Books.

Some of humanity's mightiest engineering achievements are small in scale--and, without them, the complex machinery on which our modern world runs would not exist. In Nuts and Bolts, structural engineer Roma Agrawal examines seven of these extraordinary elements: the nail, the wheel, the spring, the magnet, the lens, the string, and the pump.

Tracing the evolution from Egyptian nails to modern skyscrapers, and Neanderthal string to musical instruments, Agrawal shows us how even our most sophisticated items are built on the foundations of these ancient and fundamental breakthroughs. She explores an array of intricate technologies--dishwashers, spacesuits, microscopes, suspension bridges, breast pumps--making surprising connections, explaining how they work, and using her own hand-drawn illustrations to bring complex principles to life.

Alongside deeply personal experiences, she recounts the stories of remarkable--and often uncredited--scientists, engineers, and innovators from all over the world, and explores the indelible impact these creators and their creations had on society. In preindustrial Britain, nails were so precious that their export to the colonies was banned--and women were among the most industrious nail makers. The washing machine displayed at an industrial fair in Chicago in 1898 was the only machine featured that was designed by a woman. The history of the wheel, meanwhile, starts with pottery, and takes us to India's independence movement, where making clothes using a spinning wheel was an act of civil disobedience.

Eye-opening and engaging, Nuts and Bolts reveals the hidden building blocks of our modern world, and shows how engineering has fundamentally changed the way we live.

Winner of the AAAS/Subaru SB&F Prize for Excellence in Science Books

The wonders of engineering revealed--by the inspirational female engineer behind the Shard, Western Europe's tallest building.

While our cities are full of incredible engineering feats, most of us live with little idea of what goes into creating the built environment, let alone how a new building goes up, what it is constructed upon, or how it remains standing.

In Built, star structural engineer Roma Agrawal explains how construction has evolved from the mud huts of our ancestors to skyscrapers of steel that reach into the sky. She unearths how humans have tunneled through solid mountains; how we've walked across the widest of rivers, and tamed nature's precious water resources. She tells vivid tales of the visionaries who created the groundbreaking materials used to build the Pantheon and the Eiffel Tower; and explains how careful engineering can minimize tragedies like the collapse of the Quebec Bridge. Interweaving science, history, illustrations, and personal stories, Built offers a fascinating window into a subject that makes up the foundation of our everyday lives.