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elements～メンデレーエフの奇妙な棚～　（１６）万年筆と恐竜～イリジウムと白金族～

SCIENCE CHANNEL（JST）623K subscribers

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A 14-minute video from SCIENCE CHANNEL（JST）: “elements～メンデレーエフの奇妙な棚～　（１６）万年筆と恐竜～イリジウムと白金族～”.

Science & Math

Video by SCIENCE CHANNEL（JST）, played through YouTube's embedded player.