Imatge de l'autor
38+ obres 8,780 Membres 99 Ressenyes 15 preferits

Sobre l'autor

Born in England, the son of a geneticist, Roger Penrose received a Ph.D. in 1957 from Cambridge University. Penrose then became a professor of applied mathematics at Birkbeck College in 1966 and a Rouse Ball Professor of Mathematics at Oxford University in 1973. Penrose, a mathematician and mostra'n més theoretical physicist, has done much to elucidate the fundamental properties of black holes. With Stephen Hawking, Penrose proved a theorem of Albert Einstein's general relativity, asserting that at the center of a black hole there must evolve a "space-time singularity" of zero volume and infinite density, in which the current laws of physics do not apply. He also proposed the hypothesis of "cosmic censorship," which claims that such singularities must possess an event horizon. In 1969 Penrose described a process for the extraction of energy from a black hole, as well as how rotational energy of the black hole is transferred to a particle outside the hole. In addition, Penrose has done much to develop the mathematics needed to unite general relativity, which deals with the gravitational interactions of matter, and quantum mechanics, which describes all other interactions. (Bowker Author Biography) mostra'n menys
Crèdit de la imatge: Roger Penrose at Festival della Scienza Oct 29 2011


Obres de Roger Penrose

Shadows of the Mind (1994) 923 exemplars
The Nature of Space and Time (1996) 718 exemplars
Quantum Physics of Consciousness (2011) — Col·laborador — 15 exemplars
Oxford en Cambridge (1950) 12 exemplars

Obres associades

What Is Life? : With Mind and Matter and Autobiographical Sketches (1992) — Pròleg, algunes edicions844 exemplars
The Oxford Book of Modern Science Writing (2008) — Col·laborador — 803 exemplars
Six Easy Pieces and Six Not-So-Easy Pieces (1963) — Introducció, algunes edicions394 exemplars
White Mars (1999) 199 exemplars
'Nature and the Greeks' and 'Science and Humanism' (Canto original series) (1996) — Pròleg, algunes edicions88 exemplars
Explaining Consciousness: The Hard Problem (1997) — Col·laborador — 82 exemplars
The Nature of Time (1986) — Col·laborador — 41 exemplars
Coffee with Einstein (Coffee with...Series) (2008) — Pròleg — 33 exemplars


Coneixement comú



I enjoyed the first few chapters on computation/algorithms. The physics chapters however moved way too quickly for my comprehension. The last two chapters where he finally gets around to drawing everything together into his thesis are pretty unconvincing.
audient_void | Hi ha 26 ressenyes més | Jan 6, 2024 |
A really excellent book, explaining how conscious understanding is beyond something that is computable, and exploring how this might arise from the physical world of atoms, electrons and quantum mechanics, and whether there may be some link with the so-called “measurement problem”. Just brilliant.
jvgravy | Hi ha 6 ressenyes més | Dec 22, 2023 |
I managed to understand (mostly) approximately the first half of the book, but couldn't keep up when Penrose dipped into conformal space-time diagrams. I really liked the opening discussion on entropy and the explanation that early entropy was very special. In a sense the entropy was very low, which is why it can keep increasing, but also that as the universe was very hot at first that the entropy was as high as it could be. Only recommended for students of general relativity and cosmology!
jvgravy | Hi ha 11 ressenyes més | Nov 23, 2023 |
A giant book of physics, which might have been revealing if I had spent a great deal of time with it.
mykl-s | Hi ha 31 ressenyes més | Aug 9, 2023 |



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