CORRECTION - Nabil (C) and Hani (R), the sons, and Dema Faham, the wife of Nobel prize-winning Egyptian-American chemist Ahmed Zewail, mourn along with other relatives and officials during the second part of his funeral procession at the Zewail City of Science and Technology in Cairo on August 7, 2016. Nobel prize-winning chemist Ahmed Zewail received a funeral with military honours attended by Egypt's president and top state officials Sunday in Cairo. Zewail, who served as a science and technology advisor to US President Barack Obama, died Tuesday in the United States. He was 70. / AFP PHOTO / KHALED DESOUKIKHALED DESOUKI/AFP/Getty Images
