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Mysterious, Magical Moldavite 神秘的魔法石-捷克陨石 by Luke Dodds This little-known and otherworldly stone is full of beauty and mystery. 这种鲜为人知的石头来自『另一个世界』,美丽且神秘。 With its strangewrinkled
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Albert Einstein wins again. A new study has confirmed another prediction of his theory of general relativity. The corroboration appears online in the jou
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Your theory is at least a very ingenious one, observed Locke, and I am reminded by it of another of the natural phenomena, 你的理论至少是极为巧妙的,洛克沉吟道,由此,我联想到另外一个自然现象, of the true explanati
美剧《生活大爆炸》搞笑主题曲:Big Bang Theory Artist:Barenaked Ladies Song:Big Bang Theory Our whole universe was in a hot dense state, 宇宙一度又烫又稠密 Then nearly fourteen billion years ago expansion started. Wait... 140亿年
To be sure, Wegener made mistakes. He asserted that Greenland is drifting west by about a mile a year, which is clearly nonsense. (It's more like half an inch.) Above all, he could offer no convincing explanation for how the landmasses moved about. T