Women who give birth may be biologically "older" than women who don't, a new study suggests.一项新研究发现，生过孩子的女性在生理上会比那些没有生过的更老”。For th...
Each of us drinks about three pints of fresh water every day, and we use a great deal of water for washing, for cooking, and for other purposes. Where...
Children who are fond of country walks, and who use their eyes well,喜欢在乡村漫步并且善于观察的孩子们will be sure to notice in early spring little lumps of jelly floa...
Where did the flour come from, and how was it made?面粉从何而来? 又是如何制成的呢?There are several kinds of flour—such as oat-flour, barley-flour, rice-flour...
Turtles have an unfortunate habit of devouring plastic objects floating in the sea.海龟有一个坏习惯，就是吞食漂浮在海里的塑料制品。These then get snared in their alimentary c...
海豚在很多方面都和人类很像。比如说海豚有和人类很像的特殊的呼吸系统，唯一的不同是海豚能不呼吸氧气在水下呆很长时间。但是海豚使如何做到睡觉不溺水呢？Since Dolphins are like human being in so many ways. For example, dolphins ha...
Sugar On The Brain 大脑中的糖It’s long been understood that there is a connection between memory problems and diabetes, a disorder characterized by e...
Spectacular Inventions 眼镜的发明When you think about inventions that have radically changed human existence, what comes to mind? Probably the wheel, the p...
煮一杯咖啡并不难。但一项新的研究表明，拥有数学和分析化学背景对煮咖啡并没有坏处。因为研究人员将他们在材料科学和建模方面的技能应用到煮意式浓缩咖啡上，有了一个突破性的发现:与人们普遍认为的相反，用更少的豆子和更粗糙的研磨会让你得到更好的效果。他们的研究发表在《Matter》杂志上。Making a c...
No other country in Europe has as many volcanoes as Italy. This is because the Italian peninsula stands on a fault line. Three major volcanoes (Etna, ...