In this episode, guest host Kieran Nar sits down with Dr Rai Notay from Lubrizol to talk about how a summer internship with a running engine sparked a career in tribology that has spanned everything from laser diagnostics and piston ring testing to motorsport, industrial fluids and even hair care. Rai shares how he transitioned from academia into industry, the unexpected value of working across disciplines, and what it's like being the only engineer in a team of chemists. He also reflects on the evolving nature of the field, why tribology still feels like an emerging science, and why staying curious has been key to every stage of his journey.