A SNAPSHOT OF WORLD LITERACY TODAY
If it was up to you to solve global illiteracy, how would […]
Amir D., PH.D. Aczel
Hello, I'm an eBook!
ATTENTION: This item is an eBook. It can be read on iOS, Android, MAC and PC's with a supported eReader. It is not a physical book. eBooks are available via download immediately after you've checked out.
Used Very Good
May ship separately
Converts one physical book into a digital version.
eDelivery converts your used book order into a digital version readable on most devices.
Ships directly from Better World Books
Ships separately from Better World Books suppliers
Big River Books
Bay City Books
Your Satisfaction Guaranteed!
Magers and Quinn Booksellers
HPB - Concord
Super Book Deals
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.
Our best deal on used books 3 for $10 and just $3 each additional book. Shop and Save
Come save on used books in the Clearance Aisle. Learn more »
Gift Certificate = Happy Friend + Books donated to families in need Make Someone Happy »
We match every book you purchase with a book donation. Learn more »
Sign up now to get news, sales and special promotions!
© Better World Books (BetterWorldBooks.com)