Kategoria BISAC: Science >> Space Science - Cosmology

Nearly twenty-five hundred years ago the Greek thinker Heraclitus supposedly uttered the cryptic words "Phusis kruptesthai philei." How the aphorism, usually translated as "Nature loves to hide," has haunted Western culture ever since is the subject of this engaging study by Pierre Hadot. Taking the allegorical figure of the veiled goddess Isis as a guide, and drawing on the work of both the ancients and later thinkers such as Goethe, Rilke, Wittgenstein, and Heidegger, Hadot traces successive interpretations of Heraclitus' words. Over time, Hadot finds, "Nature loves to hide" has meant...

Beginning with some basic facts about the observable universe the authors consider in successive chapters the complete range of topics that make up a degree course in cosmology and particle astrophysics. The outstanding feature of this book is that it is self-contained, in that no specialised knowledge is required on the part of the reader, apart from basic undergraduate mathematics and physics.

This paperback edition will again target students of physics, astrophysics and cosmology at the advanced undergraduate level or early graduate level. One of the book's biggest strong points...

In physics, the idea of extra spatial dimensions originates from Nordstom's 5-dimensional vector theory in 1914, followed by Kaluza-Klein theory in 1921, in an effort to unify general relativity and electromagnetism in a 5 dimensional space-time (4 dimensions for space and 1 for time). Kaluza-Klein theory didn't generate enough interest with physicist for the next five decades, due to its problems with inconsistencies. With the advent of supergravity theory (the theory that unifies general relativity and supersymmetry theories) in late 1970's and eventually, string theories (1980s) and...

A growing number of people view the human capacity to alter natural states of affairs -- from formerly wild spaces and things around us to crops...