地球コアとヴァン・アレン帯の説明
2 months ago
19
≈紀元前2,699,998,000年
鉄やニッケルで出来た地球の核が流動し、鉄が磁石の様に働き始め、磁場を放出する様になり、バンアレン帯が形成される。
一元化 公式HP
https://uc-4.com/
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