This is SCIENCE IN THE NEWS in VOA Special English. Im Barbara Klein. And Im Steve Ember. Today we talk about hair. We will tell what hair is, how it grows, and some of the main reasons people lose it. Hair has always been an important sign of beauty

发表于:2018-12-04 / 阅读(67) / 评论(0) 分类 英语语言学习

Bald made a comeback years ago. Some men even shaving their heads before hair departed on its own, but many others say they would give anything to regrow their loss. Now doctors say a big breakthrough could make that possible. This is definitely a st

发表于:2018-12-24 / 阅读(27) / 评论(0) 分类 万花筒2011年

Long ago, before BandAids, or even medicine of any kind, our ancestors evolved to heal cuts themselves. If you got sliced open, the body blocked it up, to prevent blood loss, water loss, infection. But as we gained that powerwe sacrificed something e

发表于:2018-12-24 / 阅读(47) / 评论(0) 分类 2017年Scientific American(一)月

Millions of Americans Suffer From Hair Loss This is Science in the News, in VOA Special English. Im Shirley Griffith. And Im June Simms. Today we talk about hair. We will tell what hair is, how it grows, and some of the main reasons people lose it. H

发表于:2019-01-12 / 阅读(47) / 评论(0) 分类 2013年VOA慢速英语(五)月

Exploring the Long and Short of Hair Loss BARBARA KLEIN: This is SCIENCE IN THE NEWS in VOA Special English. Im Barbara Klein. STEVE EMBER: And Im Steve Ember. Today we talk about hair. We will tell what hair is, how it grows, and some of the main re

发表于:2019-01-12 / 阅读(40) / 评论(0) 分类 2011年VOA慢速英语(四)月

What makes people dizzy when they spin? Rolling down a hill or spinning around in endless circles causes dizziness or vertigo because hair-like sensory nerve cells in our ears send wrong messages to our brain. The motions of our bodies are detected b

发表于:2019-02-13 / 阅读(51) / 评论(0) 分类 阅读空间