Getty Images
NAACP 28th Annual Image Awards
Terrence 'TC' Carson at the NAACP 28th Annual Image Awards on February 8, 1997. (Footage by WireImage Video/Getty Images)
University of Nottingham
University of Nottingham: Periodic Table of Videos: Technetium
Introduction to technetium and the radioactive properties that allow it to be used in medical procedures for disease diagnoses. [10:45]