Nobel Prize Winning scientist known for his revolutionary work on femtochemistry
Egyptian-born American who won the Noble Prize in 1999 for chemistry for his ground breaking work on viewing and studying at the atomic level as they occur in slow motion.
Prof. Zewail pioneered the high-speed laser camera to study the almost unbelievable fast events that unfold during a chemical reaction; the science known as femtochemistry.
The California Institute of Technology in Pasadena, Calif., where Dr. Zewail was a professor of chemistry for four decades.
He was the recipient of numerous honours and an honorary doctor of 46 universities. He held honorary doctorates from both Oxford and Cambridge.
In 2009 US president appointed Zewail to his Council of Advisors on Science and Technology. In 2013 the United Nations invited him to join the UN Scientific Advisory Board.
A naturalized American citizen, Ahmed Zewail was the first Arab to win a Nobel in any of the sciences, and he used that stature to champion science education and research in Egypt and the Middle East.
In order to foster education and the establishment of centre of excellence in the Arab world, especially Egypt, the Zewail City of Science and Technology was founded on the outskirts of Cairo in 2000.
Author of some 600 papers and 14 books including 4D Electron Microscopy: Imaging in Space and Time, Zewail has left a lasting legacy.
Born Ahmed Hassan Zewail in Damanhur, of a town in the Nile Delta, the son of a government official, took his bachelor and master degrees at the University Alexandria before he moved to the US for higher studies.
Compiled by:M. Nauman Khan