Ernest Carl Oberholtzer was a central figure in the struggle to preserve the wilderness areas of the Minnesota-Ontario border, as well as an important advocate for the creation of the Boundary Waters Canoe Area. Toward Magnetic North is the story of Ernest Oberholtzer and Billy Magee's exploration of the then uncharted area of Saskatchewan up to Hudson Bay and into Manitoba. Oberholtzer's photos and journal entries capture the spirit of the wild places that he loved and admired.
The mystery of Earth's invisible, life-supporting power Alanna Mitchell's globe-trotting history of the science of electromagnetism and the Earth's magnetic field--right up to the latest indications that the North and South Poles may soon reverse, with apocalyptic results--will soon change the way you think about our planet. Award-winning journalist Alanna Mitchell's science storytelling introduce intriguing characters--from the thirteenth-century French investigations into magnetism and the Victorian-era discover that electricity and magnetism emerge from the same fundamental force to the latest research. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles have dramatically reversed many time, often coinciding with mass extinctions. The most recent reversal was 780,000 years ago. Mitchell explores indications that the Earth's magnetic force field is decaying faster than previously thought. When the poles switch, a process that takes many years, the Earth is unprotected from solar radiation storms that would, among other disturbances, wipe out much and possible all of our electromagnetic technology. Navigation for all kinds of animals is disrupted without a stable, magnetic North Pole. But can you imagine no satellites, no Internet, no smartphones--maybe no power grids at all? Alanna Mitchell offers a beautifully crafted narrative history of surprising ideas and science, illuminating invisible parts of our own planet that are constantly changing around us.
The history of science is all around us, if you know where to look. With this unique traveler's guide, you'll learn about 128 destinations around the world where discoveries in science, mathematics, or technology occurred or is happening now. Travel to Munich to see the world's largest science museum, watch Foucault's pendulum swinging in Paris, ponder a descendant of Newton's apple tree at Trinity College, Cambridge, and more. Each site in The Geek Atlas focuses on discoveries or inventions, and includes information about the people and the science behind them. Full of interesting photos and illustrations, the book is organized geographically by country (by state within the U.S.), complete with latitudes and longitudes for GPS devices. Destinations include: Bletchley Park in the UK, where the Enigma code was broken The Alan Turing Memorial in Manchester, England The Horn Antenna in New Jersey, where the Big Bang theory was confirmed The National Cryptologic Museum in Fort Meade, Maryland The Trinity Test Site in New Mexico, where the first atomic bomb was exploded The Joint Genome Institute in Walnut Creek, California You won't find tedious, third-rate museums, or a tacky plaque stuck to a wall stating that "Professor X slept here." Every site in this book has real scientific, mathematical, or technological interest -- places guaranteed to make every geek's heart pound a little faster. Plan a trip with The Geek Atlas and make your own discoveries along the way.
"This book by Lisa Tauxe and others is a marvelous tool for education and research in Paleomagnetism. Many students in the U.S. and around the world will welcome this publication, which was previously only available via the Internet. Professor Tauxe has performed a service for teaching and research that is utterly unique."—Neil D. Opdyke, University of Florida
