POSTED AT AMAZON 2009
New observations of the cosmic microwave background radiation show that early universe resounded with harmonious oscillations (acoustic sound).
How loud it was can only say the One who witnessed it. Not much I can add here to Product Description (Editorial Review). But let me tell you - this is very, very well constructed, short and easy to read popular science book. Of course it is mostly about CMB, how it was detected and has become arguably the most important source of information helping cosmologists understand the geometry and contents of the Universe (other complementary source of cosmological knowledge are observations, such as the distant type supernovae or the distribution of galaxies in space). We will learn what has been concluded and corroborated by studying the acoustic signals in the CMB provided by previous missions like COBE or BOOMERANG, as well as what is expected by Planck/Herschel space mission and what the obtained results can potentially reveal.
But this is not all. This text covers almost all other important topics of large scale cosmology/astrophysics, among them (although briefly)intriguing controversy of cosmic topology (see "The Wraparound Universe" by Jean-Pierre Luminet).It is possible that we live in finite Poincare dodecahedral space giving impression of living in a space 120 times larger. Many scientists (including Amedeo Balbi) are skeptical of it, but if you read Luminet's excellent book, WMAP measurements fall well below the plateau in the range of the lower wave numbers, named quadrupole and the octopole (far left part of the power spectrum of CMB). The infinite Euclidean cosmological model (giving the theoretical plot for curve: 'angular size or wave number' vs. 'temperature fluctuations') cannot explain this, while well proportioned finite model for the universe with multiply-connected topologies explains it very well ! Planck spacecraft, with its 10 times as many measurements with good signal-to-noise ratios as WMAP, will undoubtedly penetrate this part of the spectrum, therefore will solve topology question among many others.
Highly recommended cosmology gem !