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

From neanderthal strings and nails developed by ancient Egyptian builders to intricate musical instruments and soaring sky scrapers, humans have used collective knowledge to build impressive structures and express themselves for thousands of years. Those collective smaller inventions have been the building blocks of much more impressive human accomplishments. Roma Agrawal, an award winning structural engineer has contributed her expertise to many iconic large structures. She shares her insight in Nuts and Bolts: Seven Small Inventions That Changed the World in a Big Way. Agrawal breaks down the seven core elements: the nail, the wheel, the spring, the magnet, the lens, the string, and the pump and then shows the reader how these small elements can be grown into some of the most impressive things that humans have accomplished.