North Pole, South Pole: The Epic Quest to Solve the Great Mystery of Earth's Magnetism

( 3 )

Overview

Why do compass needles point north—but not quite north? What guides the migration of birds, whales, and fish across the world’s oceans? How is Earth able to sustain life under an onslaught of solar wind and cosmic radiation? For centuries, the world’s great scientists have grappled with these questions, all rooted in the same phenomenon—Earth’s magnetism.

Over 2,000 years after the invention of the compass, Einstein called the source of Earth’s magnetic field one of greatest ...

See more details below
Paperback
$14.37
BN.com price
(Save 9%)$15.95 List Price

Pick Up In Store

Reserve and pick up in 60 minutes at your local store

Other sellers (Paperback)
  • All (42) from $1.99   
  • New (18) from $1.99   
  • Used (24) from $1.99   
North Pole, South Pole: The Epic Quest to Solve the Great Mystery of Earth's Magnetism

Available on NOOK devices and apps  
  • NOOK Devices
  • NOOK HD/HD+ Tablet
  • NOOK
  • NOOK Color
  • NOOK Tablet
  • Tablet/Phone
  • NOOK for Windows 8 Tablet
  • NOOK for iOS
  • NOOK for Android
  • NOOK Kids for iPad
  • PC/Mac
  • NOOK for Windows 8
  • NOOK for PC
  • NOOK for Mac
  • NOOK Study
  • NOOK for Web

Want a NOOK? Explore Now

NOOK Book (eBook)
$10.49
BN.com price
(Save 34%)$15.95 List Price

Overview

Why do compass needles point north—but not quite north? What guides the migration of birds, whales, and fish across the world’s oceans? How is Earth able to sustain life under an onslaught of solar wind and cosmic radiation? For centuries, the world’s great scientists have grappled with these questions, all rooted in the same phenomenon—Earth’s magnetism.

Over 2,000 years after the invention of the compass, Einstein called the source of Earth’s magnetic field one of greatest unsolved mysteries of physics. Here, for the first time, is the complete history of the quest to understand Earth’s magnetism—from the ancient Greeks’ fascination with lodestone, to the geological discovery that the North Pole has not always been in the North—and to the astonishing modern conclusions that finally revealed the true source.

Richly illustrated and skillfully told, North Pole, South Pole unfolds the human story behind the science: that of the inquisitive, persevering, and often dissenting thinkers who unlocked the secrets at our planet’s core.

Read More Show Less

Editorial Reviews

Richmond Times-Dispatch
"North Pole, South Pole is a comprehensive account of one of the great forces that shapes our planet and its future."
Richmond Times-Dispatch
Science News
"By deftly combining threads from science and history, Turner weaves a fascinating geophysical tale that spans several millennia."
Science News
From the Publisher
"She has provided a concise and interesting history of the study of magnetism, and a fascinating new perspective on one of the most important geological discoveries of the twentieth century. . . It's well worth a look!"—Geotripper blog

“[An] engaging appreciation of science at work discovering the mysteries of magnetism.”
Kirkus Reviews

"By deftly combining threads from science and history, Turner weaves a fascinating geophysical tale that spans several millennia."
Science News

“A compelling narrative of the two-thousand-year scientific struggle to unlock the innermost secrets of the cosmic speck of dust we call home. Engagingly written in a lively style accessible to all.”
M. E. (Ted) Evans, Professor Emeritus, Department of Physics, University of Alberta, Edmonton

“A wonderful, joyful, lucid book. Turner is a natural storyteller.”
Ted Irving, Geological Survey of Canada

“The book is as much about the history of science as it is about the actual science itself, illustrating how we are often “standing on the shoulders of giants.” . . . Beautifully illustrated with maps and ancient experimental devices that helped set the focus for the study of magnetism, the book is concerned with instrumentation and innovation. . . . Certainly history and science teachers at all levels would benefit from reading it.”
National Science Teachers Association

"She has provided a concise and interesting history of the study of magnetism, and a fascinating new perspective on one of the most important geological discoveries of the twentieth century. . . It's well worth a look!"
Geotripper blog

"North Pole, South Pole is a comprehensive account of one of the great forces that shapes our planet and its future."
Richmond Times-Dispatch

Library Journal
Turner (senior lecturer, Victoria Univ., Wellington, New Zealand) has written a highly accessible history of the discovery and understanding of Earth's magnetism. She covers all of the major historical steps in the discovery of magnetism and presents her information in such a way that makes potentially difficult scientific concepts easy to understand and even entertaining to read. Human drama is also at play here, as many scientists throughout history have struggled to discover magnetism's many secrets. VERDICT Libraries that own Gerrit Verschuur's Hidden Attraction: The History and Mystery of Magnetism may not need to add this work, but Turner's title is recommended for popular history of science collections as well as for all readers looking to understand how we came to our current understanding of magnetism. Since it also involves long sea voyages, this book will also be an enjoyable read for those interested in the history of navigation.—Eric D. Albright, Tufts Univ. Hirsh Health Sciences Lib., Boston
Kirkus Reviews

In her debut, Turner (Geophysics/Victoria Univ., New Zealand) negotiates the slippery ground between hard and popular science in this story of magnetism.

The author begins with the ancient Greeks, as well as the Chinese, who used the compass in the art of feng shui, and continues through its deployment by Europeans (who may have independently discovered the tool) in the creation of portolan charts and rhumb lines, which allowed mariners to move beyond known coastlines. Despite these advances, the idea of magnetism was still little-understood. Enter the physicists and mathematicians, and here Turner takes no prisoners in her popular audience. To appreciate that the Earth's magnetic field is a "geocentric axial dipole," readers will have to dig through discussions of physics, chemistry, electricity, precession, nutation, perturbation, seismology and the Chandler wobble. Some of the author's knottier sentences—e.g., "the ratios of rough measurements of magnetic field strength (or, more precisely, dipole moment) and rotational angular momentum came very close to the square root of the gravitational constant—the constant, G, in Newton's law of gravitation, which had eventually been measured by Henry Cavendish—divided by the speed of light"—may be a bit much for general readers, but for the most part Turner achieves an engaging appreciation of science at work discovering the mysteries of magnetism. By the time she hits continental drift, polar wander and the geodynamo theory, readers mayeven understand what she means by saying that "the twisting and shearing caused by convection and the rotation of the Earth convert toroidal field lines into poloidal field lines and vice versa."

A mostly smooth explanation of a rarefied area of science.

Read More Show Less

Product Details

  • ISBN-13: 9781615190317
  • Publisher: Experiment, The
  • Publication date: 1/11/2011
  • Pages: 288
  • Sales rank: 1,373,809
  • Product dimensions: 5.50 (w) x 8.25 (h) x 0.90 (d)

Meet the Author


Gillian Turner is a senior lecturer in physics and geophysics at Victoria University in Wellington, New Zealand. The winner of numerous awards for excellence in teaching and science communication, Turner has published over fifty articles in scientific journals. This is her first book.
Read More Show Less

Table of Contents

Illustrations x

Main Characters xii

Introduction 1

1 The Mystery of Magnetism 5

2 Voyages of Discovery 20

3 Magnus Magnes 32

4 The Wandering Compass Needle 48

5 Measuring the Force 63

6 Of Forces and Fields 78

7 The Third Element 101

8 The Magnetic Crusade 114

9 The Core of the Matter 130

10 Reading the Rocks 151

11 Poles Flipped, Continents Adrift 167

12 The Story on the Seafloor 185

13 Unraveling the Record 195

14 In Search of a Solution 213

15 The Geodynamo 224

Epilogue 238

Glossary 246

Select Bibliography 257

Illustration Credits 259

Acknowledgments 263

Index 265

About the Author 272

Read More Show Less

Customer Reviews

Average Rating 5
( 3 )
Rating Distribution

5 Star

(3)

4 Star

(0)

3 Star

(0)

2 Star

(0)

1 Star

(0)

Your Rating:

Your Name: Create a Pen Name or

Barnes & Noble.com Review Rules

Our reader reviews allow you to share your comments on titles you liked, or didn't, with others. By submitting an online review, you are representing to Barnes & Noble.com that all information contained in your review is original and accurate in all respects, and that the submission of such content by you and the posting of such content by Barnes & Noble.com does not and will not violate the rights of any third party. Please follow the rules below to help ensure that your review can be posted.

Reviews by Our Customers Under the Age of 13

We highly value and respect everyone's opinion concerning the titles we offer. However, we cannot allow persons under the age of 13 to have accounts at BN.com or to post customer reviews. Please see our Terms of Use for more details.

What to exclude from your review:

Please do not write about reviews, commentary, or information posted on the product page. If you see any errors in the information on the product page, please send us an email.

Reviews should not contain any of the following:

  • - HTML tags, profanity, obscenities, vulgarities, or comments that defame anyone
  • - Time-sensitive information such as tour dates, signings, lectures, etc.
  • - Single-word reviews. Other people will read your review to discover why you liked or didn't like the title. Be descriptive.
  • - Comments focusing on the author or that may ruin the ending for others
  • - Phone numbers, addresses, URLs
  • - Pricing and availability information or alternative ordering information
  • - Advertisements or commercial solicitation

Reminder:

  • - By submitting a review, you grant to Barnes & Noble.com and its sublicensees the royalty-free, perpetual, irrevocable right and license to use the review in accordance with the Barnes & Noble.com Terms of Use.
  • - Barnes & Noble.com reserves the right not to post any review -- particularly those that do not follow the terms and conditions of these Rules. Barnes & Noble.com also reserves the right to remove any review at any time without notice.
  • - See Terms of Use for other conditions and disclaimers.
Search for Products You'd Like to Recommend

Recommend other products that relate to your review. Just search for them below and share!

Create a Pen Name

Your Pen Name is your unique identity on BN.com. It will appear on the reviews you write and other website activities. Your Pen Name cannot be edited, changed or deleted once submitted.

 
Your Pen Name can be any combination of alphanumeric characters (plus - and _), and must be at least two characters long.

Continue Anonymously
Sort by: Showing 1 – 3 of 4 Customer Reviews
  • Anonymous

    Posted June 24, 2013

    Jonah

    Sits bored

    Was this review helpful? Yes  No   Report this review
  • Anonymous

    Posted September 6, 2012

    Snowkit

    Noddd and padded there.

    Was this review helpful? Yes  No   Report this review
  • Anonymous

    Posted September 11, 2012

    Fireblaze

    He nods. Mistpaw runs up to mom. MOM she runs over. All these boys r crazy im glad im back.

    Was this review helpful? Yes  No   Report this review
Sort by: Showing 1 – 3 of 4 Customer Reviews

If you find inappropriate content, please report it to Barnes & Noble
Why is this product inappropriate?
Comments (optional)