Nuts and Bolts: Seven Small Inventions That Changed the World (in a Big Way)

Written by:
Roma Agrawal
Narrated by:
Roma Agrawal

Unabridged Audiobook

Release Date
November 2023
8 hours 16 minutes
A structural engineer examines the seven most basic building blocks of engineering that have shaped the modern world.

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

From the physics behind both Roman nails and modern skyscrapers to rudimentary springs that inspired lithium batteries, Agrawal shows us how even the most sophisticated items are built on the foundations of these ancient and fundamental breakthroughs in engineering. Agrawal explores an array of intricate technologies-dishwashers, spacesuits, microscopes, suspension bridges, breast pumps-making surprising connections and explaining how they work. Along the way, she recounts the stories of remarkable scientists and engineers from all over the world, and reveals how engineering has fundamentally changed the way we live.
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