Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

It is not an exaggeration to say that one of the most exciting predictions of Einstein's theory of gravitation is that there may exist "black holes": putative objects whose gravitational fields are so strong that no physical bodies or signals can break free of their pull and escape. The proof that black holes do exist, and an analysis of their properties, would have a significance going far beyond astrophysics. Indeed, what is involved is not just the discovery of yet another even if extremely remarkable, astro­ physical object, but a test of the correctness of our understanding of the properties of space and time in extremely strong gravitational fields. Theoretical research into the properties of black holes, and into the possible corol­ laries of the hypothesis that they exist, has been carried out with special vigor since the beginning of the 1970's. In addition to those specific features of black holes that are important for the interpretation of their possible astrophysical manifestations, the theory has revealed a number of unexpected characteristics of physical interactions involving black holes. By the middle of the 1980's a fairly detailed understanding had been achieved of the properties of the black holes, their possible astrophysical manifestations, and the specifics of the various physical processes involved. Even though a completely reliable detection of a black hole had not yet been made at that time, several objects among those scrutinized by astrophysicists were considered as strong candidates to be confirmed as being black holes.

Black holes (Astronomy) --- Astrophysics. --- Trous noirs (Astronomie) --- Astrophysique --- Astrophysics --- Mathematical physics. --- Statistical physics. --- Dynamical systems. --- Observations, Astronomical. --- Astronomy—Observations. --- Theoretical, Mathematical and Computational Physics. --- Complex Systems. --- Astronomy, Observations and Techniques. --- Astrophysics and Astroparticles. --- Statistical Physics and Dynamical Systems. --- Astronomical physics --- Astronomy --- Cosmic physics --- Physics --- Astronomical observations --- Observations, Astronomical --- Dynamical systems --- Kinetics --- Mathematics --- Mechanics, Analytic --- Force and energy --- Mechanics --- Statics --- Mathematical statistics --- Physical mathematics --- Statistical methods

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Can we change the past? The surprising answer to this question can be found in the final chapters of this book. Examining the history of the study of time and presenting in detail the modern state of physical research on the subject, this book is a superb overview of a fascinating subject. The figures who have helped to shape our views on time are presented as real people, in the context of their own times and struggles: from Socrates' troubles in Athens, to the experiences of physicists under the former Soviet Union. In addition Novikov details his own experiences with great Russian and Western physicists, such as Sakharov, Zeldovich, Rees and Hawking. Details of modern theories in fields such as the possibility of time machines, anomalous flows of time (at black or white holes) and the possible source of The River of Time are described with authority and clarity.

Physics --- Astronomy --- Time. --- Time --- Hours (Time) --- Geodetic astronomy --- Nautical astronomy --- Horology --- History. --- Philosophy.

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Astrophysics --- Relativity (Physics) --- Cosmology --- Gravitation --- Astrophysique --- Relativité (Physique) --- Cosmologie --- 530.12 --- 521 --- Relativity principle --- Theoretical astronomy. Celestial mechanics --- 521 Theoretical astronomy. Celestial mechanics --- 530.12 Relativity principle --- Relativité (Physique) --- Relativistic astrophysics --- 524 --- Stars. Stellar systems. The Universe --- Relativistic astrophysics. --- 524 Stars. Stellar systems. The Universe --- 521.03 --- Field theory (Physics) --- Matter --- Physics --- Antigravity --- Centrifugal force --- Astronomy --- Deism --- Metaphysics --- 521.03 Theoretical astronomy. Celestial mechanics--?.03 --- Theoretical astronomy. Celestial mechanics--?.03 --- Properties --- Cosmology. --- Gravitation. --- Stars.