发表于2024-12-25
Comets pdf epub mobi txt 電子書 下載 2024
"A bright comet suspended in the sky at dawn or dusk
is an im pressive sight, exciting to scientists and
nonscientists alike. The visual spectacle is created by
the light scattered from the comet s tail, whose image
can stretch from horizon to horizon
"All aspects of cometary studies have been discussed
in articles and other items in Scientific American.
We begin this reader with an article touching on the
general interest in comets as revealed in art and history.
One of the fascinating aspects of comets is the public
reaction to them. This reaction is revealed in part by the
coverage of Halley s Comet at its last apparition in 1910
--coverage which included descriptions of the recovery
of the comet and of Halley s original work
"An introduction to cometary astronomy precedes
this collection of Scientific Arherican articles.
This introduction will help the reader to appreciate the
~ -~-development of cometary astronomy, its present state,
.- and its prospects."
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Comets pdf epub mobi txt 電子書 下載 2024