Marie Curie

Marie Sklodowska Curie (1867-1934) was a Polish-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, the first person to win Nobel Prizes in two different sciences (Physics in 1903, Chemistry in 1911), and the first woman to become a professor at the University of Paris.

Born in Warsaw under Russian partition, she moved to Paris to study at the Sorbonne, often surviving on little more than bread and chocolate. With her husband Pierre Curie, she discovered two new elements - polonium (named for her native Poland) and radium.

Her work was physically dangerous and ultimately fatal - she died of aplastic anemia caused by years of radiation exposure. Her notebooks from the 1890s are still so radioactive they must be stored in lead-lined boxes.

During World War I, she developed mobile radiography units ("petites Curies") that brought X-ray technology to field hospitals, saving countless soldiers' lives. She personally drove these units to the front lines.

Her legacy extends beyond science into the realm of human determination. She overcame poverty, sexism, xenophobia, and personal tragedy to become one of the most important scientists in history.