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90 million years ago, Antarctica had a temperate forest just 900 kilometers from the South Pole despite months of darkness. 90 million years later, scientists found its roots, pollen and spores preserved in seafloor sediment beneath today's frozen continent
大约九千万年前,古代西南极洲有一片温带雨林。化石根和花粉表明南极附近生长着茂密的植被。与现代雨林不同,这片森林每年都会经历数月的黑暗。科学家们重建了二氧化碳含量高的温暖气候。
Russia’s US Navy Aircraft Carrier Killer Oscar-Class Submarine: Two Nuclear Reactors, 19,000 Tons, 24 Missiles But Sunk By Its Own ‘Peroxide’ Torpedo
12 个成角度的发射管沿着 Oscar II 的每一侧延伸,位于耐压船体外部,携带 24 枚 P-700 Granit 导弹。每个重约七吨,速度在 1.6 至 2.5 马赫之间。一旦 24 发全部发射完毕,主弹匣就无法在海上重新装弹。一万九千吨的潜艇,一次齐射。