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He observed that the authors begin with axioms of geometry and physics then derive the consequences in a rigorous fashion. Various well-known exact solutions to Einstein's field equations and their physical meaning are explored. In particular, Hawking and Ellis show that singularities and black holes arise in a large class of plausible solutions.
If black holes evaporate via Hawking radiation, a solar mass black hole will evaporate (beginning once the temperature of the cosmic microwave background drops below that of the black hole) over a period of 10 64 years. [152] A supermassive black hole with a mass of 10 11 M ☉ will evaporate in around 2×10 100 years. [153]
Hawking discusses black hole thermodynamics, special relativity, general relativity, and quantum mechanics. Hawking also describes his life when he was young, and his later experience of motor neurone disease. The book also includes an interview with Professor Hawking. [2]
In 1974, Stephen Hawking predicted that black holes might not be the bottomless pits we imagine them to be. According to Hawking's calculations, some information might escape black holes in the ...
In physics, black hole thermodynamics [1] is the area of study that seeks to reconcile the laws of thermodynamics with the existence of black hole event horizons.As the study of the statistical mechanics of black-body radiation led to the development of the theory of quantum mechanics, the effort to understand the statistical mechanics of black holes has had a deep impact upon the ...
The singularity at the center of a Schwarzschild black hole is an example of a strong singularity. Space-like singularities are a feature of non-rotating uncharged black holes as described by the Schwarzschild metric , while time-like singularities are those that occur in charged or rotating black hole exact solutions.
Stephen Hawking provided a ground-breaking solution to one of the most mysterious aspects of black holes, called the "information paradox." Black holes look like they 'absorb' matter. Every time a ...
By dimensional analysis, the life span of a black hole can be shown to scale as the cube of its initial mass, [15] [16]: 176–177 and Hawking estimated that any black hole formed in the early universe with a mass of less than approximately 10 12 kg would have evaporated completely by the present day. [17]