Ahmed H. Zewail

Zewail, Ahmed H.; chemists; science; study and teaching; Egypt; biography.

ʻAṣr al-ʻilm

"This volume, the collected work, is an assemblage of the author's "Reflections on World Affairs : Peace and Politics." The focus is on education, science for the have-nots--as well as for the haves--and science in diplomacy. Prof. Zewail believes that the use of the 'soft power' of education, diplomacy, and economic development is far more effective, and much less expensive, than the hegemony of military aggression or politicized foreign aid. From his unique position straddling between East and West cultures and values, it is clear that most problems in our world arise from 'not knowing' and 'not having.' It follows that education is critical, not only for enlightenment, or 'knowing,' but also for boosting productivity and enhancing 'having'"--Provided by publisher.

peace and politics

Reflections on world affairs

John Meurig Thomas

Structural phase transitions, mechanical deformations, and the embryonic stages of melting and crystallization are examples of phenomena that can now be imaged in unprecedented structural detail with high spatial resolution, and ten orders of magnitude as fast as hitherto. No monograph in existence attempts to cover the revolutionary dimensions that EM in its various modes of operation nowadays makes possible. The authors of this book chart these developments, and also compare the merits of coherent electron waves with those of synchrotron radiation. They judge it prudent to recall some important basic procedural and theoretical aspects of imaging and diffraction so that the reader may better comprehend the significance of the new vistas and applications now afoot. This book is not a vade mecum - numerous other texts are available for the practitioner for that purpose.

Imaging in Space and Time

4D Electron Microscopy

From a beginning in an Egyptian delta town and the port of Alexandriato the scenic vistas of sunny southern California, Ahmed Zewail takesus on a voyage through time his own life and the split-secondworld of the femtosecond. In this endearing expos(r) of his life andwork until his receipt of the Nobel Prize in 1999, he draws lessonsfrom his life story so far, and he meditates on the impact which therevolution in science has had on our modern world in bothdeveloped and developing countries.

Walks of Life to the Nobel Prize

Voyage Through Time

These two volumes on Femtochemistry present a timely contribution to a field central to the understanding of the dynamics of the chemical bond. This century has witnessed great strides in time and space resolutions, down to the atomic scale, providing chemists, biologists and physicists with unprecedented opportunities for seeing microscopic structures and dynamics. Femtochemistry is concerned with the time resolution of the most elementary motions of atoms during chemical change -- bond breaking and bond making -- on the femtosecond (10-15 second) time scale. This atomic scale of time resolution has now reached the ultimate for the chemical bond and as Lord George Porter puts it, chemists are near the end of the race against time. These two volumes cover the general concepts, techniques and applications of femtochemistry.Professor Ahmed Zewail, who has made the pioneering contributions in this field, has from over 250 publications selected the articles for this anthology. These volumes begin with a commentary and a historical chronology of the milestones. He then presents a broad perspective of the current state of knowledge in femtochemistry by researchers around the world and discusses possible new directions. In the words of a colleague, "it is a must on the reading-list for all of my students ... all readers will find this to be an informative and valuable overview."The introductory articles in Volume I provide reviews for both the non-experts as well as for experts in the field. This is followed by papers on the basic concepts. For applications, elementary reactions are studied first and then complex reactions. Volume I is complete with studies of solvation dynamics, non-reactive systems, ultrafast electron diffraction and the control of chemical reactions.Volume II continues with reaction rates, the concept of elementary intramolecular vibrational-energy redistribution (IVR) and the phenomena of rotational coherence which has become a powerful tool for the determination of molecular structure via time resolution. The second volume ends with an extensive list of references, according to topics, based on work by Professor Zewail and his group at Caltech.These collected works by Professor Zewail will certainly be indispensable to both experts and beginners in the field. The author is known for his clarity and for his creative and systematic contributions. These volumes will be of interest and should prove useful to chemists, biologists and physicists. As noted by Professor J Manz (Berlin) and Professor A W Castleman, Jr. (Penn State): femtochemistry is yielding exciting new discoveries from analysis to control of chemical reactions, with applications in many domains of chemistry and related fields, e.g., physical, organic and inorganic chemistry, surface science, molecular biology, ... etc.

Ultrafast Dynamics of the Chemical Bond

Femtochemistry

Volume II continues with reaction rates, the concept of elementary intramolecular vibrational-energy redistribution (IVR) and the phenomena of rotational coherence which has become a powerful tool for the determination of molecular structure via time resolution. The second volume ends with an extensive list of references, according to topics, based on work by Professor Zewail and his group at Caltech. These collected works by Professor Zewail will certainly be indispensable to both experts and beginners in the field. The author is known for his clarity and for his creative and systematic contributions. These volumes will be of interest and should prove useful to chemists, biologists and physicists. As noted by Professor J. Manz (Berlin) and Professor A.W. Castleman, Jr.

From a beginning in an Egyptian Delta town and the port of Alexandria to the scenic vistas of sunny southern California, Ahmed Zewail takes us on a voyage through time -- his own life and the split-second world of the femtosecond. In this engaging exposé of his life and work until his receipt of the Nobel Prize in 1999, Zewail explores in non-technical language the landscape of molecules glimpsed on the scale of one quadrillionth of a second: the femtosecond, 0. 000 000 000 000 001 second. Zewail enriches the journey into the strange territory of femtochemistry with insightful analogies and illustrations to aid both the general reader and the scientifically inclined. He likewise draws lessons from his life story so far, and he meditates on the impact the revolution in science has had on our modern world -- in both developed and developing countries. He suggests a concrete course of action for the world of the have-nots, and ends the book with hope for Egypt in developing the nation's greatest natural resource -- its youth -- to build a more promising future, and for America to develop a new vision domestically and internationally.

Ahmed H. Zewail

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