1) The document discusses several important historical figures and their inventions including Ahmed Zawail, Isaac Newton, Ibn Sina, Louis Pasteur, and Thomas Edison. 2) Ahmed Zawail is an Egyptian scientist who won the 1999 Nobel Prize in Chemistry for his work in femtochemistry and is a professor at Caltech. 3) The document provides a brief introduction to each inventor and their contributions to science and technology.

1. Nader Hadj Ameur + Mohamed Amen Allah Sfaxi   Great inventions

2. 1) Introduction 2)Presentation of: 2.1) Ahmed Zawail 2.2) Isaac Newton 2.3) Ibn Sina 2.4) Louis Pasteur 2.5) Thomas edison 3) Conclusion Plan

3. Everything changes in our world and all it takes is just time. The mankind has started its evolution more than 3000 years ago from the invention of the fire and the discovery of the circle, but during this long period it has managed to make a great progress and now we do not talk about fire and circles but Internet and Virtual Reality... Here in our timeline you can see how people evolutionised from the invention of the printing press in 1450 to the modern inventions like the DVD . Introduction

4. Ahmed Hassan Zewail (Arabic: أحمد حسن زويل ‎ ) (born February 26, 1946 in Damanhour, Egypt) is an Egyptian-American scientist, and the winner of the 1999 Nobel Prize in Chemistry for his work on femtochemistry. He is the Linus Pauling Chair Professor Chemistry and Professor of Physics at the California Institute of Technology. Dr. Zewail has been nominated and will participate in President Barack Obama's Presidential Council of Advisors on Science and Technology (PCAST). The council will talk about education, science, defense, energy, the economy, and technology. Ahmed Zawail

5. Isaac Newton

6. Ibn Sina

7. Louis Pasteur

8. Thomas Edison

9. Conclusion