The woman scientist that corrected Newton's energy formula, who am I talking about?

Question

She corrected Newton's Energy Formula, and found out that mass times distance = Energy was wrong, she said it was mass times distance, Squared = Energy. I know she died in her 30s, and she was from France. Who am I talking about?

Answer 1

Sounds like you mean Marie Curie who was active at the time of the E=mc2 formulation by Einstein ~1905,
but she did not die in her 30s.
She died in the 1930s at the age of 66.
It has to be her if the story is true about a woman contibuting to Einstein's theory in the 1905 time period. She had already won a Nobel prize for physics in 1903. She won a second Nobel prize in chemistry in 1911. She was one of only 34 female Nobel prize laureates out of a total of 731 prizes awarded as of 2006.