Étienne Klein est un physicien et philosophe des sciences français, célèbre pour son travail de vulgarisation de la physique contemporaine. Il se concentre sur les questions profondes soulevées par la physique quantique et la physique des particules. Klein explore comment ces concepts complexes façonnent notre compréhension de l'univers et notre place en son sein. Son écriture, accessible et stimulante, rend les idées scientifiques complexes compréhensibles pour un large public.
E. Klein présente les différentes théories scientifiques sur l'origine de l'univers. Il interroge ces modèles cosmologiques actuels et montre qu'ils ne décrivent que des métamorphoses, des structurations, mais sont encore incapables de saisir le passage de l'absence de toute chose à l'existence de quelque chose, la source dynamique de tout ce qui existe.
Time is a "thing" that cannot be grasped, yet which undoubtedly exists. It is a "thing" which everybody speaks of but no one has seen. We see, hear, feel, taste IN time, but not time itself. We are sure we are grounded in physical reality, but it is Chronos — the Greek god of time, said to have ruled the world before Zeus — whose strange principles shape our existence. To confront time, we must approach it carefully, "peeling away" its mysteries one by one, distinguishing it from its various duration, memory, movement, speed, repetition. Clocks do not necessarily measure time, for time continues even when we think it is running out. Time may carry us along in its flow, but it is a constant. It exists independently of we who observe it, who live through it, who grow old and die in it.Today, the boldest look at time, and perhaps the most disconcerting, is provided by physicists. Scientists from Galileo to Einstein, and now in the era of anti-matter and superstrings, wrestle with the mind-blowing questions which time Did time precede the universe? How did it start? Can we reverse its flow? Do several "times" exist in time?
Ein Adventskalender zum Vor- und Selberlesen