CAIRO (Reuters) - Nobel Prize-winning Egyptian-American chemist Ahmed Zewail, a science and technology advisor to President Barack Obama and the first U.S. science envoy to the Middle East, died on Tuesday in the United States, his spokesman told Egyptian state TV.
Zewail, who was 70 and a member of the California Institute of Technology (Caltech) faculty, was the sole recipient of the Nobel chemistry prize in 1999 for his pioneering work in femtochemistry, the study of chemical reactions in ultra-short time scales.
