Marie Curie was a pioneer in the study of radioactivity and the first woman to win a Nobel Prize—and the only person to win it in two different sciences (Physics and Chemistry). Her research led to groundbreaking advancements in medicine and physics. Key Invention/Discovery: Radium and Polonium: Curie discovered these radioactive elements, which have applications in cancer treatment. Impact: Her work revolutionized medical imaging and radiation therapy, saving countless lives.
