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
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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