The Making of Isaac Newton Anyone who has ever gone to school is probably aware that Isaac Newton formed his theory of gravity after seeing an apple fall from a tree. This story is allegedly true. Wha

发表于:2018-12-31 / 阅读(46) / 评论(0) 分类 有声英文阅读

The Making of Isaac Newton 牛顿+苹果=万有引力 Anyone who has ever gone to school is probably aware that Isaac Newton formed his theory of gravity after seeing an apple fall from a tree. This story is allegedly true. What is certain, howev

发表于:2019-01-02 / 阅读(64) / 评论(0) 分类 双语有声阅读

发表于:2019-02-01 / 阅读(78) / 评论(0) 分类 英文语法词汇

As altitude increases, atmospheric pressure decreases. This is due to Earth's gravitational pull on the air molecules in the atmosphere. The closer to the Earth's surface the stronger the force exerted on these molecules. 随着高度上升,大气压

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