Most wonderful when /
they scatter --- /
The cherry blossoms. /
In this floating world, /
does anything endure?
(Chireba-koso / Itodo sakura wa / Medetakere / Ukiyo ni nani ka / Hisashikarubeki}
--- from Tales of Ise, by Narihira
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24 January 2011
How Old is the Universe?
David A. Weintraub's new book How Old Is the Universe? explains how four independent lines of evidence converged on the answer: 13.7 billion years.
explains how four independent lines of evidence converged on the answer: 13.7 billion years.
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