A Brief History of TimeRandom House Publishing Group, 1998 M09 1 - 240 páginas #1 NEW YORK TIMES BESTSELLER |
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... thousand million years . However , our uncertainty about the present average density of the universe is even greater . If we add up the masses of all the stars that we can see in our galaxy and other galaxies , the total is less than ...
... thousand million years ( 1 or 2 with ten zeros after it ) . On the other hand , as mentioned in Chapter 6 , there might be primordial black holes with a very much smaller mass that were made by the collapse of irregularities in the very ...
... thousand million years ago — it takes about that long for intelligent beings to evolve . As explained above , an ... thousand million years old . The first one or two thousand million years of the earth's existence were too hot for the ...
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 |