The Experiment, January 2011
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.
$10.69 List price: $15.95 You save: 33% ($5.26)
If you use one of Kobo's free reading apps you won't need to worry about download options most of the time. Your Kobo reading app can easily add Kobo Store books to your library for a seamless reading experience.
Download options matter when:
In both of these cases you will need to:
You can also use Digital Editions to transfer the book to your eReader. See here for more information on Digital Editions.
You can read this item on your computer using our free Kobo Desktop Application. This application lets you read, manage your library of eBooks, and even shop for new ones. Check out our demo for more information!
Learn More »You can read this item on your Kobo eReader (or other select electronic reading devices). The Kobo eReader lets you carry your whole library with you, so that you can read on the go.
Visit kobo.com/ereaders »You can read this item on select tablets using one of our free Kobo apps. These apps let you read, manage your library of eBooks, and even shop for new ones.
Learn More »You can read this item on your Kobo Vox eReader. The Kobo Vox eReader lets you read books with color, sound or interactive elements. Check out our demo for more information on the Kobo Vox.
Learn More »You can read this item on your Kobo Arc using the Library app. This app lets you read, manage your library of eBooks, and shop for new books.
Learn More »You can read this item on any Android device (phone, tablet) with one of our free Kobo apps. These apps let you read, manage your library of eBooks, and even shop for new ones.
Learn More »You can read this item on the free Kobo app for iPhone. This app let you read, manage your library of eBooks, and even shop for new ones.
Download the iPhone App! Learn More »
By: {2}
Available on: {3}
Coming soon
Secure TransactionSubtotal
Store Credit
Total
We'll charge your credit card {4} on {3}.
We'll charge your credit card {4} when the book is added to your Library.
Your store credit covers the cost of this purchase, so we don't charge your credit card
Use Quick Buy for all eBook purchases.{2} is now in your library. You'll receive an email confirming your purchase very soon.
{2} has been pre-ordered. You'll receive a confirmation email confirming your pre-order very soon.
You were charged:
You will be charged: on {3}
You will be charged: when the book is added to your Library
Rakuten Super Points earned: {1}
Rakuten Super Points {1} earned after the book is added to your Library
