Empress of the West and second wife of Louis I the Pious. She was chosen by the emperor from among the most beautiful heiresses of the empire. Ambitious, much younger than her husband (17), she quickly took on a great influence. In 827, she married her sister Emma to Louis the German. She is the mother of Charles the Bald, future king of France.
A Chinese chemist, Yi Xie (b. 1967) has helped create new nanomaterials with applications in converting heat and solar energy into electricity. In 2018, you voted for her for the NobElle Chemistry Prize! Studies and early career Yi Xie was born on July 23, 1967 in Fuyang, Anhui Province, eastern