Jacob takes us inside a lab at Hong Kong Polytechnic where researchers are creating self-cleaning fabric. The science behind the research is explained well by Adelman, who playfully blends sound from the lab and scientists with clips from "The Man in the White Suit." Disasterous eater and lover of wine that I am, I look forward to the day I see Xin's self-cleaning fabrics for sale and can exclaim "I heard about that on the radio!"