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

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

241 Pages · 2011 · 4.46 MB · English
by Gillian Turner PhD
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“ The best time to plant a tree was 20 years ago. The second best time is now. ” ― Chinese Proverb
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