A Brief History of TimeRandom House Publishing Group, 1998 M09 1 - 240 páginas #1 NEW YORK TIMES BESTSELLER |
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... radiation . We have no direct evidence as to whether the matter in other galaxies is made up of protons and neutrons or antiprotons and anti- neutrons , but it must be one or the other : there cannot be a mixture in a single galaxy ...
... radiation at a certain rate . It is a matter of common experience that if one heats up a poker in a fire it glows red hot and emits radiation , but bodies at lower temperatures emit radiation too ; one just BLACK HOLES AIN'T SO BLACK 107.
... radiation at a much greater rate . A primordial black hole with an initial mass of a thousand million tons would have a lifetime roughly equal to the age of the universe . Primordial black holes with initial masses less than this figure ...
Otras ediciones - Ver todas
A Brief History of Time: From the Big Bang to Black Holes Stephen Hawking,Carl Sagan Vista de fragmentos - 1990 |
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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 |