An episode of The Engines of Our Ingenuity explores the transformation of rubber. The episode, numbered 3405, discusses how rubber evolves from natural latex into more complex forms. This transformation is likened to Irish Stews, suggesting a process of combining various elements to create something new.

The episode is titled Beyond Rubber, indicating that it delves into the diverse applications and forms of rubber beyond its natural state. Further details about the episode and its discussion on rubber can be found through the source, which provides more information on the topic.