他發現樹一直在寫日記

美國加州白山山區，有一種名叫狐尾松的樹。其中一棵，被認為已經活了四千八百多年。當古埃及人在建造金字塔的時候，它已經是一棵樹了。美國天文學家安德魯．道格拉斯（Andrew Ellicott Douglass），原本研究的是太陽黑子。他想知道，太陽活動會不會影響地球氣候。於是，他開始研究樹木年輪。 -- Hosting provided by SoundOn

Episode metadata supplied by the publisher feed · Published Aug 17, 2026

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他發現樹一直在寫日記

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