Voyage Through Time: Walks of Life to the Nobel Prize

Voyage Through Time: Walks of Life to the Nobel Prize Télécharger le livre pdf

Auteur:

Ahmed Zewail

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1547

Langue:

Anglais

Notation:

0

département:

l'histoire

Nombre de pages:

301

Section:

Journal de bord

Taille du fichier:

14587456 MB

qualité du livre :

Excellent

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Ahmed Zewail (1946-2016) était un scientifique égypto-américain qui a remporté le prix Nobel de chimie en 1999 pour ses travaux en femtochimie, un domaine qu'il a contribué à créer. Zewail est né à Damanhur, en Égypte, et a obtenu son diplôme de premier cycle à l'Université d'Alexandrie avant de terminer ses études supérieures à l'Université de Pennsylvanie et à l'Université de Californie à Berkeley.

Les travaux révolutionnaires de Zewail en femtochimie consistaient à étudier les réactions chimiques à l'échelle de la femtoseconde, soit un quadrillionième de seconde. À l'aide de lasers ultrarapides, Zewail a pu capturer des images d'atomes et de molécules en mouvement lors de réactions chimiques, ce qui a permis de mieux comprendre la dynamique et les mécanismes des réactions chimiques.

En plus de son travail en femtochimie, Zewail était également un ardent défenseur de l'enseignement des sciences et de la diplomatie scientifique. Il a fondé la Zewail City of Science and Technology en Égypte, un centre de recherche et d'éducation axé sur la science et la technologie, et a été membre du Conseil des conseillers du président Obama sur la science et la technologie.

Zewail a reçu de nombreux prix et distinctions tout au long de sa carrière, dont la Médaille nationale des sciences en 1993 et l'Ordre du Nil, la plus haute distinction d'État égyptienne, en 2008. Il a également été membre de nombreuses sociétés scientifiques, dont l'Association américaine pour l'avancement. of Science et la Royal Society of Chemistry.

Zewail est décédé en 2016 à l'âge de 70 ans. Ses contributions au domaine de la femtochimie et son dévouement à l'enseignement des sciences et à la diplomatie continuent d'avoir un impact durable sur la communauté scientifique.

Description du livre

Voyage Through Time: Walks of Life to the Nobel Prize livre pdf lu et telecharge par Ahmed Zewail

"Voyage Through Time" is a fascinating book by Nobel Prize-winning scientist Ahmed Zewail that takes readers on a journey through the history of timekeeping and the measurement of time. The book is filled with engaging stories, anecdotes, and scientific explanations that illustrate the importance of accurate time measurement in human civilization.

Zewail begins the book by discussing the earliest methods of timekeeping, such as the use of sundials and water clocks, and how these methods evolved over time. He then goes on to describe the development of more sophisticated timekeeping devices, such as mechanical clocks, and how they revolutionized society by enabling people to synchronize their activities more precisely.

The book also delves into the physics of time and the concept of relativity, which had a profound impact on our understanding of time and space. Zewail explains the theories of Albert Einstein and their implications for time measurement, such as the fact that time passes more slowly in strong gravitational fields.

Throughout the book, Zewail emphasizes the importance of accurate time measurement in a wide range of fields, from medicine and chemistry to astronomy and navigation. He also highlights the ongoing efforts to improve time measurement technology, such as the development of atomic clocks and the creation of a new unit of time called the attosecond.

In addition to its scientific content, "Voyage Through Time" also offers insights into Zewail's personal journey as a scientist and his passion for advancing our understanding of the natural world. He shares stories of his own research and discoveries, as well as his collaborations with other scientists around the world.

Overall, "Voyage Through Time" is an engaging and informative read that will appeal to anyone interested in the history and science of timekeeping. Zewail's writing is accessible and engaging, and his enthusiasm for the subject is contagious. The book offers a unique perspective on the role of time in human civilization and the ongoing quest to measure it with ever-greater precision.

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