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But more recently a lucky accident uncovered the fact that Friedmann's assumption is in fact a remarkably accurate descrip- tion of our universe . In 1965 two American physicists at the Bell Telephone Laboratories in New Jersey ...
Using the way light cones behave in general relativity , together with the fact that gravity is always attractive , he showed that a star collapsing under its own gravity is trapped in a region whose surface eventually shrinks to zero ...
So I could in fact use it to prove that there should be a singularity only if the universe was expanding fast enough to avoid collapsing again ( since only those Friedmann models were infinite in space ) . During the next few years I ...
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LibraryThing Review
Crítica de los usuarios - DzejnCrvena - LibraryThingI got the version with no pictures in it, so I can't understand some concepts mentioned in the book. May reread later when I become (more) interested in physics or astronomy. It's one of the books I just picked randomly, even though my significant other mentioned it at least once. Leer comentario completo
LibraryThing Review
Crítica de los usuarios - Rose999 - LibraryThingHa, what can you say about this book? I liked it a lot, the concepts are extremely difficult to grasp at times but we are talking about theories that are being worked on by some of the most ... Leer comentario completo
Contenido
Our Picture of the Universe | 1 |
Space and Time | 15 |
The Expanding Universe | 37 |
Derechos de autor | |
Otras 15 secciones no mostradas
Otras ediciones - Ver todas
A Brief History of Time: From the Big Bang to Black Holes Stephen Hawking,Carl Sagan Vista de fragmentos - 1990 |
Términos y frases comunes
Referencias a este libro
Qualitative Data Analysis: A User-friendly Guide for Social Scientists Ian Dey Sin vista previa disponible - 1993 |
Postmodern Public Administration: Toward Discourse Charles J. Fox,Hugh T. Miller Vista de fragmentos - 1995 |