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NON-FICTION

February 2010

We Need to Talk About Kelvin: What Everyday Things Tell Us About The Universe

Marcus Chown
Faber and Faber (2009)
$29.99
We need to talk about Kelvin

How does your existence tell you that our universe is not the only one? How does the fact that teacups break but never unbreak tell us that the universe must have expanded from a Big Bang?

These and nine other such questions are covered in this fascinating book by Marcus Chown, an author and broadcaster who has written a handful of popular physics books, including Quantum Theory Cannot Hurt You.

In his latest book, he explains everyday physics at a deeper level. For example, when he explains why we are able to see our reflection along with the interior of a shop when looking in the window.

He begins by clarifying what atoms are, "Democritus postulated that atoms come in a handful of different types, like microscopic Lego bricks, and that, by assembling them in different ways, it is possible to make a rose or a cloud or a shining star."

He also explains why the Sun is hot. It may not be something you stop to think about today, but it caused a bit of controversy about a century ago. One theorist working on this problem was British astrophysicist Arthur Eddington, who was convinced that the Sun was powered by heat energy liberated when hydrogen fused to make helium.

"To those who pooh-poohed his idea, saying that the Sun was not hot enough for fusion, he retorted: 'Go find a hotter place'." He ended up being right, but with a chunk of the theory missing, which was developed years later.

This book will make the world around you much more tangible than it already is through a series of relatable, fun and exquisitely explained theories.