She used her spare time to study, reading about physics, chemistry and math. Both Curie and her sister Bronya dreamed of going abroad to earn an official degree, but they lacked the financial resources to pay for more schooling. Retrieved 27 August Sick and tired, she remained active until the last months of her life working at the Radium Institute and the League of Nations, and preparing her next after the Discourse on Radio a ctivity monumental work: Radio a ctivity , compiled and published posthumously by Irena Joliot-Curie Paris More exhibitions.
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