Radioactivity is like a clock that never needs adjusting,” writes Doug Macdougall. “It would be hard to design a more reliable timekeeper.” In Nature’s Clocks, Macdougall tells how scientists who were seeking to understand the past arrived at the ingenious techniques they now use to determine the age of objects and organisms. In this blog post, you will be able to download free PDF e-book copy of Nature’s Clocks PDF.
By examining radiocarbon (C-14) dating―the best known of these methods―and several other techniques that geologists use to decode the distant past, Macdougall unwraps the last century’s advances, explaining how they reveal the age of our fossil ancestors such as “Lucy,” the timing of the dinosaurs’ extinction, and the precise ages of tiny mineral grains that date from the beginning of the earth’s history. In lively and accessible prose, he describes how the science of geochronology has developed and flourished. Relating these advances through the stories of the scientists themselves―James Hutton, William Smith, Arthur Holmes, Ernest Rutherford, Willard Libby, and Clair Patterson―Macdougall shows how they used ingenuity and inspiration to construct one of modern science’s most significant accomplishments: a timescale for the earth’s evolution and human prehistory.
Table of Contents
Below is the complete table of contents presented in Nature’s Clocks PDF:
1: Chapter 1. No Vestige of a Beginning
2: Chapter 2. Mysterious Rays
3: Chapter 3. Wild Bill’s Quest
4: Chapter 3. Wild Bill’s Quest
5: Chapter 4. Changing Perceptions
6: Chapter 5. Getting the Lead Out
7: Chapter 6. Dating the Boundaries
8: Chapter 7. Clocking Evolution
9: Chapter 8. Ghostly Forests and the Mediterranean
10: Chapter 9. More and More from Less and Less
11: Appendix A. The Geological Time Scale
12: Appendix B. Periodic Table of the Chemical Elements
13: Appendix C. Additional Notes
14: Resources and Further Reading
Here are the technical specifications of Nature’s Clocks PDF:
- Paperback: 288 pages
- Publisher: University of California Press; First edition (October 20, 2009)
- Language: English
- ISBN-10: 0520261615
- ISBN-13: 978-0520261617
- Product Dimensions: 6 x 0.8 x 9 inches
- Shipping Weight: 9.6 ounces
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