University of Chicago Press
The Age of Everything
About this book
Hedman details, for example, how interdisciplinary studies of the Great Pyramids of Egypt can determine exactly when and how these incredible structures were built. He shows how the remains of humble trees can illuminate how the surface of the sun has changed over the past ten millennia. And he also explores how the origins of the earth, solar system, and universe are being discerned with help from rocks that fall from the sky, the light from distant stars, and even the static seen on television sets.
Covering a wide range of time scales, from the Big Bang to human history, The Age of Everything is a provocative and far-ranging look at how science has determined the age of everything from modern mammals to the oldest stars, and will be indispensable for all armchair time travelers.
“We are used to being told confidently of an enormous, measurable past: that some collection of dusty bones is tens of thousands of years old, or that astronomical bodies have an age of some billions. But how exactly do scientists come to know these things? That is the subject of this quite fascinating book. . . . As told by Hedman, an astronomer, each story is a marvel of compressed exegesis that takes into account some of the most modern and intriguing hypotheses.”—Steven Poole, Guardian
Author / Editor information
Reviews
"We are used to being told confidently of an enormous, measurable past: that some collection of dusty bones is tens of thousands of years old, or that astronomical bodies have an age of some billions. But how exactly do scientists come to know these things? That is the subject of this quite fascinating book, a collection of detective techniques that begins with the deciphering of Mayan hieroglyphs and the reconstruction of their extraordinary calendar, like a huge system of gears; and ends by tracing the universe back to its own birth. As told by Hedman, an astronomer, each story is a marvel of compressed exegesis that takes into account some of the most modern and intriguing hypotheses.... The book is dense with fact but beautifully lucid."
Topics
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Frontmatter
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Contents
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Acknowledgments
vii -
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1. Introduction
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2. The Calendars of the Classic Maya
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3. Precession, Polaris, and the Age of the Pyramids
26 -
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4. The Physics of Carbon
49 -
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5. Calibrating Carbon-14 Dates and the History of the Air
66 -
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6. Carbon-14 and the Peopling of the New World
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7. Potassium, Argon, DNA, and Walking Upright
96 -
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8. Molecular Dating and the Many Different Types of Mammals
118 -
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9. Meteorites and the Age of the Solar System
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10. Colors, Brightness, and the Age of Stars
163 -
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11. Distances, Redshifts, and the Age of the Universe
184 -
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12. Parameterizing the Age of the Universe
204 -
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Glossary
229 -
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Index
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