Have you never really studied philosophy? Or do you want to go back to the basics? This little book is made for you: here is a handful of notions, ideas and quotes that will add grist to your mill...

A summary sheet which explains the principle of the famous Pythagorean theorem, with some examples and training exercises!

The Order of the Temple! At this mere mention, the imagination is awakened: proud knights, a scent of iron and incense, mysterious rituals... Discover how this humble militia from the time of the Crusades passed from grace to disgrace, and marked so deeply our History!

A sheet which presents the principle of the "remarkable identities" in algebra, and several examples of their use!

A sheet intended for beginners in physical sciences, about the fundamental principle of classical mechanics, with concrete examples and practical exercises!

This book covers the following four volumes of Historiqwo in one: Geocentrism & Heliocentrism, on the history of ancient cosmology; The First Industrial Revolution, on the birth of the technological age; 1789 A decisive beginning, which presents the first months of the French Revolution; and finally Overview of the medieval Orient, which plunges us into Middle Ages Asia... Happy reading!

Trends! They give rhythm to the progress of societies, they inspire our lives and our ideas, they come, they go, they come back, they impose... Let's go and discover nineteen of them, from Algorithms to Utopias, from Baroque to Liberalism: trends which marked their time or which dominate ours...

Air, water, earth, life... Nature is a huge domain and a fascinating subject... What if we set out to discover or rediscover it, with new angles of view?

The Earth is under pressure, and its inhabitants, of which we are a part, now seem seriously threatened... It may even be a question of survival... It is high time to act! Yes indeed, but where to start?

Physical sciences! You don't know or understand anything about it... That's why this little book is made for you! Let's relax, and discover together measurement, matter, forces, energy...

Let's not forget it too quickly, but our modern civilization finds its distant roots all around the ancient Mediterranean, where Egyptians, Persians and above all Greeks marked history with their exploits. Let yourself be invited on a journey to the origins, to the Greatest Antiquity, and attend ten crucial episodes, from Ramses to Alexander...

The twentieth century is just yesterday. You could touch it!And it is an essential period of history. If you were to study only one century at all, surely it would be this one. It is not by chance that it is a recurrent topic in our school and television programs.It is a terrible century, maybe the most terrible ever: world wars, atom era, genocides. It is also a century of lights, of technical and human development. And it is a century which questions us. Who are we? Where...