Financial crisis and cuts to the welfare system have driven people to UK food banks. About 500,000 are estimated to have ...

Time off from digital devices. Find out how a school in England challenges students to stay away from their gadgets ...

说起彩条牙膏，相信很多人家里都有。让人疑惑的是，无论怎么挤这种彩条牙膏，挤出来的膏体颜色都依旧分明，不会混在一起。为什么这些颜料在牙膏包装里不会混为一团呢？有人说，之所以颜色能自动区分开是因为牙膏是非牛顿流体，也有人说是因为牙膏是宾汉流体。那么，到底 ...

说起彩条牙膏，相信很多人家里都有。让人疑惑的是，无论怎么挤这种彩条牙膏，挤出来的膏体颜色都依旧分明，不会混在一起。 为什么这些颜料在 ...

接下来，让我们一起看看一个小对话场景： Mom: Peter, it's time to eat breakfast. Peter: I am brushing my teeth. Mom: Alright, you better hurry, your bus is coming. Peter: Mom~ the toothpaste dropped on my shorts. Mom: Oh, ...