The drone flew. The spool unfurled across the valley, and for one small, flapping miracle the village’s children crossed safely. The woman’s gratitude rippled out: a newspaper photographer took a picture of the drone against a bruised sky, and the image found its way into a morning section where an engineering student named Meera saw it.

The book is divided into 12 chapters, covering a wide range of topics in manufacturing technology, including:

"The EDM process," Arjun murmured, pointing to Rao’s diagrams on Electrical Discharge Machining. "My father thinks you can only shape metal by hitting it. I want to show him we can shape it with sparks and math."

Before a student can operate a lathe, they must understand why a chip forms. Rao dedicates significant effort to: