maria skladowska curie was born in 1867 in warsaw, then it was city of the russian empire, in order colleague in this work turned out to be the physicist pierre curie, who soon became her husband. together they began to study the radiation of metals, introduced the concept of radioactivity and discovered the radioactive element polonium. experimenting with uranium ore, they isolated a radiating element from it, which they called radium, and proposed using radiation to treat cancer. curie therapy became the basis for radiation therapy, which is still used today. for their success in the study of radioactivity, marie and pierre curie received the nobel prize in physics in 1903. in 1906, maria, having experienced depression after the death of her husband, began teaching at the university of paris, and 5 years later she received a second nobel prize, this time in chemistry. for the last 10 years of her life, she suffered from constant fatigue and illnesses, the cause of which at that time could not be determined about the dangerous properties of radio and... not yet knew. in 1934, marie