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The Spinning Magnet
- The Electromagnetic Force that Created the Modern World - and Could Destroy It
- ナレーター： P.J. Ochlan
- 再生時間： 9 時間 37 分
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The Spinning Magnet
批評家のレビュー
"The Earth's magnetic field -- an invisible cloak that shields our bodies and our technologies from deadly harm -- tends to be taken for granted. In reality it's a fickle, ill-understood phenomenon. Alanna Mitchell delves into the mystery, in an engrossing book that features a new surprise on every page." (Sean Carroll, author of The Big Picture: On the Origins of Life, Meaning, and the Universe Itself)
"In The Spinning Magnet, Alanna Mitchell weaves a scientific mystery in the best possible way, exploring the ancient puzzle of our planet's electromagnetic field, following scientists as they attempt to decipher its clues, leading us to a better understanding of Earth's invisible and powerful electromagnetic field. The result is a compelling tale of unseen and unforeseen natural forces - and a reminder that we've staked our home on a planet that remains infinitely strange, dangerous - and ever full of wonder." (Deborah Blum, author of The Poisoner's Handbook: Murder and the Birth of Forensic Medicine in Jazz Age New York)
"A fascinating untold story of science that is full of mystery and intrigue, and written with a great deal of style." (Mark Miodownik, New York Times best-selling author of Stuff Matters; winner of the Royal Society’s Winton Prize)
あらすじ・解説
An engrossing history of the science of one of the four fundamental physical forces in the universe, electromagnetism, right up to the latest indications that the poles are soon to reverse and destroy the world's power grids and electronic communications
A cataclysmic planetary phenomenon is gathering force deep within the Earth. The magnetic North Pole will eventually trade places with the South Pole. Satellite evidence suggests to some scientists that the move has already begun, but most still think it won't happen for many decades. All agree that it has happened many times before and will happen again. But this time it will be different. It will be a very bad day for modern civilization.
Award-winning science journalist Alanna Mitchell tells in The Spinning Magnet the fascinating history of one of the four fundamental physical forces in the universe, electromagnetism. From investigations into magnetism in 13th-century feudal France and the realization 600 years later in the Victorian era that electricity and magnetism were essentially the same, to the discovery that Earth was itself a magnet, spinning in space with two poles and that those poles aperiodically reverse, this is a utterly engrossing narrative history of ideas and science that listeners of Stephen Greenblatt and Sam Kean will love.
The recent finding that Earth's magnetic force field is decaying 10 times faster than previously thought, portending an imminent pole reversal, ultimately gives this story a spine-tingling urgency. When the poles switch, a process that takes many years, Earth is unprotected from solar radiation storms that would, among other things, wipe out all electromagnetic technology. No satellites, no Internet, no smartphones - maybe no power grid at all. Such potentially cataclysmic solar storms are not unusual. The last one occurred in 2012, and we avoided returning to the Dark Ages only because the part of the sun that erupted happened to be facing away from Earth. One leading US researcher is already drawing maps of the parts of the planet that would likely become uninhabitable.