Even as adults we still enjoy blowing bubbles, dont we? If youve ever wondered why blowing on a thin film of soapy water creates bubbles, this is your lucky day. All liquids have a property called surface tension. Take water, for example. Water molec

发表于:2018-12-31 / 阅读(33) / 评论(0) 分类 英语听力文摘 English Digest

Hi there, I'm Ore with the BBC World News for Children. Coming up: Japan's mission to super hot planet. A new survey says kids care more about computers than animals. And Inter Milan face Bayern Munich in the Champion's League final. First up, after

发表于:2019-02-16 / 阅读(38) / 评论(0) 分类 英语听力文摘 English Digest

Why lips go dry? 为什么嘴唇会干呢? Lets start by reviewing the ways in which the surface of our lips is different from the surface of the skin on the rest of our bodies. Basically, our lips are made of the same mucus membrane that coats t

发表于:2019-02-24 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest

It's a common enough sound in summer, after the wind finally picks up on a hot and humid afternoon, as the rain starts spattering down in big, fat drops--you're in for a full-blown thunderstorm. It's much less common in winter, even during a snow sto

发表于:2019-02-24 / 阅读(74) / 评论(0) 分类 英语听力文摘 English Digest

Topics: Ask an American: social media and job searches; go ahead, make my day; years old versus year old Words: to scratch the surface theres no telling wild, wild west tremendous social media to enhance credibility thought leadership buddy to dictat

发表于:2019-03-05 / 阅读(174) / 评论(0) 分类 美语听力 English Cafe

Why Frisbees Fly With a gentle flick of the wrist on a warm summer day, you can launch a frisbee on a long and graceful flight. Why do they fly so well? One reason is something called gyroscopic force. This is the tendency of a spinning object to mai

发表于:2019-03-09 / 阅读(99) / 评论(0) 分类 英语听力文摘 English Digest