童话故事: 爱丽丝漫游奇境记01
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科学60秒:透镜效应:揭开古老星系面纱
Five very old galaxies are now known to astrophysicists, thanks to Albert Einstein. A century ago, Einstein predicted an effect called cosmic gravitational lensing. Picture a massive galaxy out i...
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励志经典Ambition 抱负 Ambition It is not difficult to imagine a world short of ambition. It would probably be a kinder world: with out demands, without abrasions, without disappointments. Peopl...
美文:人生如诗
短文Human Life a Poem I think that, from a biological standpoint, human life almost reads like a poem. It has its own rhythm and beat, its internal cycles of growth and decay. It begins with ...
晨读美文022
晨读美文No young man believes he will ever die. It was a saying of my brother’s, and a fine one. There is a feeling of Eternity in youth, which makes us amend for everything. To be young is to b...