biaguedes:

MARIE SKLODOWSKA CURIE opened up the science of radioactivity. She was the discoverer of the radioactive elements polonium and radium and  the first person to win two Nobel prizes. For scientists and the public, her radium was a key to a basic change in our understanding of matter and energy. Her work not only influenced the development of fundamental science but also ushered in a new era in medical research and treatment

(Source: beaguedes)