Harrison – Cosmology, Chapter 14, Project 2
The term big bang was first used by Fred Hoyle in his series of BBC radio talks on astronomy published in The Nature of the Universe, 1950. "This big bang idea seemed to me to be unsatisfactory even before examination showed that it leads to serious difficulties. For when we look at our own Galaxy there is not the smallest sign that such an explosion ever occurred. This might not be such a cogent argument against the explosion school of thought if our Galaxy had turned out to be much younger than the whole Universe. But this is not so. On the contary, in some of these theories the Universe comes out to be younger than our astrophysical estimates of the age of our own Galaxy.... On philosophical grounds too I cannot see any good reason for preferring the big bang idea. Indeed it seems to me in the philosophical sense to be a distinctly unsatisfactory notion, since it puts the basic assumption out of sight where it can never be challenged by direct appeal to observation."
Discuss Hoyle's remarks.
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發表於 2007-9-10 21:18:20