私たちの宇宙を形作る基本的な化学元素を探求しましょう。その起源、用途、そして私たちの経済における役割を、この魅力的で情報豊かなシリーズで発見してください。
Obscure Elements
30 mins • Sep 28, 2016
Charts
- 170Increased by 25
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- 143NEW
- 200Decreased by 61
- 184NEW
- 196Decreased by 35
最近のエピソード
Sep 28, 2016
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