инверсия

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14.12.2011 (14:49) Естественные науки >> Физика
2012: инверсия магнитного поля Земли происходит каждую геологическую эпоху
Ученым известно, что наша планета на протяжении многих тысячелетий неоднократно меняла направление магнитного поля на противоположное. Представьте себе, что примерно 800 000 лет тому назад, если бы мы стояли с компасом в руках лицом к тому, что теперь называется севером, ...>>


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