The Spinning Magnet: The Force That Created the Modern World - and Could Destroy It by Alanna Mitchell
English | June 7th, 2018 | ISBN: 1786074249 | 336 Pages | True PDF | 5.10 MB
North is north and south is south. Or is it? Every once in a long while, the Earth's magnetic poles switch places. It's happened many times in deep history, but never since humans walked the planet. After the next big switch, our compasses will point the wrong way and we will no longer be able to see the aurora borealis in Iceland.