Results for the keyword physical
Étienne Guyon, Jean-Paul Troadec
From a Bag of Marbles to a Heap of Sand
Why don't sand dunes collapse? How does sand flow in an hourglass? How is it possible to empty a silo of all its wheat? What's a ceramic? The answer to all these questions can be found in the science of the complex organizations of matter, a science which is pluridisciplinary. Étienne Guyon, head of the École Normale Supérieure, and Jean-Paul Troadec, a researcher, present the characteristics of grain matter, the rules by which it is organized (in both crystal and fluid) as well as its movements (in silos as in avalanches).
Pierre Bergé, Yves Pomeau, Monique Dubois-Gance
From Rhythm to Chaos
From the physics of particules to astronomy, from chemistry to biology, chaos is present in most scientific fields. Three specialists of this subject have undertaken, through many examples, to extract chaos from the scientific world in order to show how strong is its hold on our daily lives.
