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Encyclopedia > Ahmed Zewail
Ahmed Hassan Zewail
Born February 26, 1946 (1946-02-26) (age 61)
Damanhur, Egypt
Nationality American
Field Chemistry and Physics
Known for Femtochemistry
Notable prizes Nobel Prize for Chemistry (1999)
Religion Muslim

Ahmed Hassan Zewail (Arabic: أحمد حسن زويل) (born February 26, 1946 in Damanhur, Egypt) is an Egyptian American scientist, and the winner of the 1999 Nobel Prize in Chemistry for his work on femtochemistry. is the 57th day of the year in the Gregorian calendar. ... Year 1946 (MCMXLVI) was a common year starting on Tuesday (link will display full 1946 calendar) of the Gregorian calendar. ... Damanhur (Arabic: دمنهور ) or Hermopolis Mikra (Greek: ) or Latin: Hermopolis Parva is a city in Lower Egypt, and the capital of al-Buhayrah (Beheira or Behera) governorate. ... For other uses, see Chemistry (disambiguation). ... This is a discussion of a present category of science. ... Femtochemistry is the science that studies chemical reactions on extremely short timescales, approximately 10–15 seconds (this is one femtosecond, hence the name). ... Image File history File links Nobel_prize_medal. ... List of Nobel Prize laureates in Chemistry from 1901 to the present day. ... There is also a collection of Hadith called Sahih Muslim A Muslim (Arabic: مسلم, Persian: Mosalman or Mosalmon Urdu: مسلمان, Turkish: Müslüman, Albanian: Mysliman, Bosnian: Musliman) is an adherent of the religion of Islam. ... Arabic can mean: From or related to Arabia From or related to the Arabs The Arabic language; see also Arabic grammar The Arabic alphabet, used for expressing the languages of Arabic, Persian, Malay ( Jawi), Kurdish, Panjabi, Pashto, Sindhi and Urdu, among others. ... is the 57th day of the year in the Gregorian calendar. ... Year 1946 (MCMXLVI) was a common year starting on Tuesday (link will display full 1946 calendar) of the Gregorian calendar. ... Damanhur (Arabic: دمنهور ) or Hermopolis Mikra (Greek: ) or Latin: Hermopolis Parva is a city in Lower Egypt, and the capital of al-Buhayrah (Beheira or Behera) governorate. ... Egyptian Americans are Americans of Egyptian ancestry, first-generation Egyptian immigrants, or descendants of Egyptians who immigrated to the U.S. One large community of Egyptian Americans is located in northeastern Virginia, in the Washington DC metropolitan area. ... List of Nobel Prize laureates in Chemistry from 1901 to the present day. ... Femtochemistry is the science that studies chemical reactions on extremely short timescales, approximately 10–15 seconds (this is one femtosecond, hence the name). ...

Contents

Birth and education

Ahmed Zewail was born on February 26, 1946 in Damanhur (60 km south-east of Alexandria) and raised in Disuq. He received his first degree from the University of Alexandria before moving from Egypt to the United States to complete his PhD at the University of Pennsylvania. He completed post doctorate at the University of California, Berkeley. is the 57th day of the year in the Gregorian calendar. ... Year 1946 (MCMXLVI) was a common year starting on Tuesday (link will display full 1946 calendar) of the Gregorian calendar. ... Damanhur (Arabic: دمنهور ) or Hermopolis Mikra (Greek: ) or Latin: Hermopolis Parva is a city in Lower Egypt, and the capital of al-Buhayrah (Beheira or Behera) governorate. ... Nickname: Alexandria on the map of Egypt Map of Alexandria Coordinates: , Country Egypt Founded 334 BC Government  - Governor Adel Labib Population (2001)  - City 3,500,000 Time zone EET (UTC+2)  - Summer (DST) EEST (UTC+3) Twin Cities  - Baltimore  United States  - Cleveland  United States  - ConstanÅ£a  Romania  - Durban  South Africa... Disuq is a small city which is located 80 K.M. south east of Alexandria. ... Alexandria University is a university in Alexandria, Egypt. ... The University of Pennsylvania (also known as Penn[3][4]) is a private, coeducational research university located in Philadelphia, Pennsylvania. ... Sather tower (the Campanile) looking out over the San Francisco Bay and Mount Tamalpais. ...


Academic Career

After some post doctorate work at UC-Berkeley, he was awarded a faculty appointment at Caltech in 1976, where he has remained since. He became a naturalized citizen of the United States in 1982, and in 1990, he was made the first Linus Pauling Chair in Chemical Physics. The University of California, Berkeley (also known as Cal, UC Berkeley, UCB, or simply Berkeley) is a prestigious, public, coeducational university situated in the foothills of Berkeley, California to the east of San Francisco Bay, overlooking the Golden Gate and its bridge. ... California Institute of Technology The California Institute of Technology (commonly known as Caltech) is a private, coeducational university located in Pasadena, California, in the United States. ... Naturalization is the process whereby a person becomes a national of a nation, or a citizen of a country, other than the one of his birth. ... Linus Carl Pauling (February 28, 1901 – August 19, 1994) was an American quantum chemist and biochemist. ...


Research

Zewail's key work has been as the pioneer of femtochemistry—i.e. the study of chemical reactions across femtoseconds. Using a rapid ultrafast laser technique (consisting of ultrashort laser flashes), the technique allows the description of reactions on very short time scales - short enough to analyse transition states in selected chemical reactions. Femtochemistry is the science that studies chemical reactions on extremely short timescales, approximately 10–15 seconds (this is one femtosecond, hence the name). ... Vapours of hydrogen chloride in a beaker and ammonia in a test tube meet to form a cloud of a new substance, ammonium chloride A chemical reaction is a process that results in the interconversion of chemical substances. ... A femtosecond is the SI unit of time equal to 10-15 of a second. ... In physics, ultrafast describes events that occur on femtosecond timescales. ... Experiment with a laser (US Military) In physics, a laser is a device that emits light through a specific mechanism for which the term laser is an acronym: Light Amplification by Stimulated Emission of Radiation. ... In optics, an ultrashort pulse of light is an electromagnetic pulse whose time duration is on the order of the femtosecond ( second). ...


In 1999, Zewail became the third ethnic Egyptian to receive the Nobel Prize, following Anwar Sadat (1978 in Peace) and Naguib Mahfouz (1988 in Literature). Other international awards include the Wolf Prize in Chemistry (1993) and the Robert A. Welch Award (1997). In 1999, he received Egypt's highest state honour, the Grand Collar of the Nile. Muhammad Anwar Al-Sadat (محمد أنورالسادات in Arabic) (December 25, 1918 – October 6, 1981) was an Egyptian politician and served as the third President of Egypt from September 28, 1970 until his assassination on October 6, 1981. ... This article is about the Egyptian novelist. ... The Wolf Prize has been awarded annually since 1978 to living scientists and artists for achievements in the interest of mankind and friendly relations among peoples . ...


Cambridge University awarded him an Honorary Doctorate in Science in 2006. The University of Cambridge (often Cambridge University), located in Cambridge, England, is the second-oldest university in the English-speaking world and has a reputation as one of the worlds most prestigious universities. ... An honorary degree (Latin: honoris causa ad gradum, not to be confused with an honors degree) is an academic degree awarded to an individual as a decoration, rather than as the result of matriculating and studying for several years. ... D.Sc. ...


Zewail is married, and has four children.


External links

  • Ahmed Zewail's Caltech website

  Results from FactBites:
 
Egypt State Information Service-Spring 2000 (777 words)
Zewail said that such award expresses the ingenuity of science and compared the revolution he has pioneered in atoms and molecules to the scientific advances of ancient Egyptians in the area of time measurement.
Zewail, the first Egyptian, Arab and African to take one of the Nobel science awards since presentations started in 1901, was awarded the chemistry prize for research that makes it possible to watch atoms in slow motion during incredibly fast reactions.
Ahmed Zewail currently is the Linus Pauling Chair Professor of Chemistry and Professor of Physics at the California Institute of Technology, and Director of the NSF Laboratory for Molecular Sciences (LMS).
  More results at FactBites »

 
 

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