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

Structural engineer Roma Agrawal discusses small inventions that shaped the world, including the scarcity of nails and the revolution of lenses. She shares personal stories about the impact of these inventions on her life, such as their role in her daughter's IVF process. The podcast also explores the effects of lenses on photography, the unsung heroes of engineering and science, communication history, and the evolution of breast pumps.