Marie Curie discovered two new elements of the periodic table (polonium and radium) and conducted extensive research on radioactivity. She was the first woman to receive a Nobel Prize. Marie Curie was also involved in the development of X-ray machines.
Physicist and chemist Marie Curie was awarded two Nobel Prizes, the first one for her research on radiation and the second one for discovering and studying polonium and radium.
She discovered that the strength of the radiation produced by uranium can be measured accurately, establishing a relationship between the intensity of radiation and the amount of uranium contained by the studied compound. She also developed new techniques that managed to isolate radioactive isotopes. Her scientific work was remarkable, and Marie Curie became the first woman to earn a title of professor at the University of Paris.