أحمد زويل
Ahmed Zewail () (born February 26, 1946) is an Egyptian chemist, and the winner of the 1999 Nobel Prize in Chemistry for his work on femtochemistry. Born in Damanhur (60 km south-east of Alexandria) and raised in Disuq, he moved to the United States to complete his PhD at the University of Pennsylvania. He was awarded a faculty appointment at Caltech in 1976, where he has remained since.