Technetium (pronounced "teck-NEE-see-um") was the first synthetically produced element. Very important for medical imaging and diagnostics, it's used as a tracer that can go inside the body and allow an analysis on the heart or other internal systems, organs and processes. This Element of Surprise segment features the following experts: Don Wiles, professor emeritus of chemistry, Carleton University, and Glenn Wells, medical physicist, Ottawa Heart Institute.

From the Curio.ca streaming audio-visual collection.