Roma Agrawal

"A structural engineer examines the seven most basic building blocks of engineering that have shaped the modern world"-- "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,...

"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...