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Enchantment Of Urania, The: 25 Centuries Of Exploration Of The Sky (Paperback)
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Enchantment Of Urania, The: 25 Centuries Of Exploration Of The Sky (Paperback)
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Today we know much about the sky: how stars are born, how they live
and die, and how the universe as a whole evolves. We have learned
of the existence of another type of matter, indifferent to light
and yet decisive for the formation of galaxies, and we have a hint
of a dark energy that since the last 4.5 billion years has taken
over the control of the cosmos. We postulated and then discovered
and even photographed black holes and listened to the faint rustle
of the space-time ripple produced when these monsters devour each
other. We reached these astonishing results (recognized by a bunch
of Nobel Prizes and filling every day the media with wonders for
the eyes and the mind) by the marriage of physics and astronomy
that unified the Earth with the sky and then by the leap forward of
science and technology in the Twentieth Century. This rich heritage
has ancient roots. It was built by accumulating discoveries with
errors, observations with fantasies, myths, and superstitions with
flashes of genius, over a span of millennia, since Homo sapiens,
turning his eyes to the immutable and perfect sky, began to ask
questions.The book is a narration of the answers to these questions
that had evolved over time: a progressive path, inserted in the
general history, with some second thoughts and many obstacles. This
is a saga of men and machines where greatness sometimes mixes with
misery and passion often borders on sacrifice and even martyrdom.
Why should we know it? Because our current knowledge is the result
of these efforts and of the preconceptions that accompanied
them.The challenge has been to present this complex and intricate
subject without resorting to any formulas, so that it can be
accessible to a wide audience of curious people, including high
school and university students and in general all those who
normally keep themselves informed of scientific things. A rich
bibliography has also been added in the appendix for those wishing
to learn more on one or more topics.
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