Smell

This week Laura Gelfand explores how and why water has flavor with Dr. Christy Spackman, author of "The Taste of Water: Sensory Perception and the Making of an Industrialized Beverage."

We revisit our conversation with Jude Stewart about her book Revelations in Air, taking us us on a fascinating journey into the weird and wonderful world of smell.

Smell can collapse space and time, unlocking memories and transporting us to worlds both new and familiar. In her new book Revelations in Air, Jude Stewart takes us on a fascinating journey into the weird and wonderful world of smell.