那水呢，不但不结冰，倒反在绿萍上冒着点热气，水藻真绿，把终年贮蓄的绿色全拿出来了。天儿越晴，水藻越绿，就凭这些绿的精神，水也不忍得冻上，况且那些长枝的垂柳还要在水里照个影儿呢！看吧，由澄清的河水慢慢往上看吧，空中，半空中，天上，自上而下全是那么清亮， ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.

最近，眼尖的粉丝发现贾斯汀·比伯在Instagram上取关了妻子海莉，引发了分手传闻。在这位《Baby》歌手的震惊举动之后，粉丝们开始问他和这位28岁的模特是否要离婚。 The pop singer has now addressed the ...

Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...