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The Light/dark Universe: Light From Galaxies, Dark Matter And Dark Energy [9789812835895]

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To the eyes of the average person and the trained scientist, the night sky is dark, even though the universe is populated by myriads of bright galaxies. Why this happens is a question commonly called Olbers' Paradox, and dates from at least 1823. How dark is the night sky is a question which preoccupies astrophysicists at the present. The answer to both questions tells us about the origin of the universe and the nature of its contents - luminous galaxies like the Milky Way, plus the dark matter between them and the mysterious dark energy which appears to be pushing everything apart. In this book, the fascinating history of Olbers' Paradox is reviewed, and the intricate physics of the light/dark universe is examined in detail. The fact that the night sky is dark (a basic astronomical observation that anybody can make) turns out to be connected with the finite age of the universe, thereby confirming some event like the Big Bang. But the space between the galaxies is not perfectly black, and data on its murkiness at various wavelengths can be used to constrain and identify its unseen constituents.
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SKU:
9789812835895
ISBN13:
9789812835895
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Delivery Usually In 5-10 Working Days
Author:
Paul S Wesson
Publisher:
World Scientific Publishing Co Pte Ltd
Publication:
21-Aug-2008
Format:
Paperback
Pages:
236
Weight:
400 Grams
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The Last Judgement [9781788637398]

The dead are rising. The world hangs in the balance... A man holds a gun to Professor Alex Harker in a Cambridge University lecture room. He wants to …

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The Light Holds: Poems [9780819560964]

This is the book of an urban mystic, someone who believes that the streets he walks, the incidents he sees and in which he sometimes plays a part have…

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