This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Hard-training athletes boost their performance with a variety of popular sports drinks. These drinks do work. But not in the way youd think. Thats acco

发表于:2019-01-08 / 阅读(113) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-second Science, Im Cynthia Graber. This will just take a minute. I still tend to move my fingers almost subconsciously when doing arithmetic. Well, that might be not so strange according to research published in the Ma

发表于:2019-01-08 / 阅读(113) / 评论(0) 分类 Scientific American(五)月

This is Scientific Americans 60-second Science. Im Karen Hopkin, this will just take a minute. For every action there is a reaction, and for many movements we make, there is an intention. We think about moving, and we move. Now a study published in t

发表于:2019-01-08 / 阅读(110) / 评论(0) 分类 Scientific American(五)月

Leptin is a hormone made by fat cells that tells you when you're full. If you didn't have leptin---and some people don't---youd eat way too much, get real fat and almost certainly develop diabetes. Leptin acts like a natural appetite suppressant. Kid

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 Scientific American(六)月

Transcript This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Nearly 20 percent of servicemen and women returning from Iraq and Afghanistan report symptoms of post-traumatic stress or major depression. Another 19 perce

发表于:2019-01-08 / 阅读(128) / 评论(0) 分类 Scientific American(二)月

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-08 / 阅读(105) / 评论(0) 分类 Scientific American(五)月

Its called functional magnetic resonance imaging, or FMRI. And some neuroscientists call it the greatest scientific advance of the last 25 years. Because FMRI lets researchers look at the human brain in action. By measuring blood flow, it produces co

发表于:2019-01-08 / 阅读(117) / 评论(0) 分类 Scientific American(二)月

睡觉的时候为啥不会打喷嚏? The signs are unmistakable: the eyes water, the chest heaves, the nosetwitches, the body tenses, suspense builds until finally a sneeze blasts forth, concluding the drama. It's a momentarily paralyzing experien

发表于:2019-01-08 / 阅读(196) / 评论(0) 分类 轻松英语

Jessica在北京学汉语,她的中国朋友要是遇到了不知道用美语怎么说的词,就会来请教他。今天是吴琼要问的:宅男宅女。 Jessica: Wuqiong,听说你表妹从上海来看你了,怎么样,Are you two getting

发表于:2019-01-08 / 阅读(169) / 评论(0) 分类 轻松英语

[00:01.34]In the next few years, [00:02.75]we will be communicating with our friends [00:04.76]around the world using life-sized video screens [00:07.87]in our living rooms. [00:09.96]By the year 2020, computers will already have [00:12.70]become mor

发表于:2019-01-10 / 阅读(235) / 评论(0) 分类 北师大版高中英语模块7(选修)

[00:02.34]Let's see how sight and hearing work. [00:05.66]The areas of the brain related to controlling [00:08.25]sight and hearing could be compared [00:10.41]to film studios [00:11.82]which make a constant film [00:13.42]and soundtrack of what's ha

发表于:2019-01-10 / 阅读(280) / 评论(0) 分类 北师大版高中英语模块7(选修)

While You Sleep, Your Brain Works 睡眠时大脑并未停止工作 From VOA Learning English, this is the Health Report. Why do we need sleep? 为什么人们需要睡眠? Is bedtime just a time for dreaming? Do our brains turn off for the night?

发表于:2019-01-12 / 阅读(88) / 评论(0) 分类 2014年VOA慢速英语(八)月

Screams Have Special Place in Brain 尖叫声在大脑中会有特殊的位置 From VOA Learning English, this is the Health Lifestyle report. Have you ever thought about screaming? A blood-curdling scream is a natural reaction to sudden, extreme fri

发表于:2019-01-12 / 阅读(105) / 评论(0) 分类 2015年VOA慢速英语(八)月

Using Head in Soccer May Be Dangerous for Children 对儿童而言,用头击足球可能是危险的 Soccer is not a violent game. But players can hit the ball with their head and collide with other players, the ground and goal posts. Catherine McGil

发表于:2019-01-12 / 阅读(72) / 评论(0) 分类 2015年VOA慢速英语(八)月

Low Levels of Vitamin D Might Hurt Your Brain 缺乏维生素D影响大脑功能 From VOA Learning English, this is the Health Lifestyle report. Health experts have long known that vitamin D is important for healthy bones and teeth. It may also help

发表于:2019-01-12 / 阅读(74) / 评论(0) 分类 2015年VOA慢速英语(九)月

男女大脑没有太显著差别 Scientists have long held that there are differences between men's and women's brains. The Tel Aviv team wanted to find out if those differences are significant enough to create two distinctly different types of brai

发表于:2019-01-14 / 阅读(144) / 评论(0) 分类 VOA标准英语2016年(二月)

A: Good morning, may I speak with Professor Clark, please? B: You are speaking with Professor Clark. A: Professor, I am Kalia from your morning literature class. B: Yes, how can I help you? A: I ran my car into a tree yesterday and need to miss a few

发表于:2019-01-15 / 阅读(90) / 评论(0) 分类 英语情景对话-健康

So, unfortunately for our new friend from the football game, his bad behavior at the game might outweigh his good behavior at the park. 所以,很不幸对在足球赛中认识的那位新朋友来说,他在观众席上不道德的行为带来的影

发表于:2019-01-17 / 阅读(96) / 评论(0) 分类 TED演讲教育篇

Let's say that it would take you ten minutes to solve this puzzle. 假如你要用十分钟完成这个拼图。 How long would it take if you received constant electric shocks to your hands? 如果你的手被持续电击,你会用多久完成它?

发表于:2019-01-17 / 阅读(71) / 评论(0) 分类 TED演讲教育篇

You know, all life developed here on Earth with gravity being present, 你知道,地球上的生物在重力环境下生存, so life evolved under the influence of gravity, and then we grow up with gravity being present, 你知道,地球上的生

发表于:2019-01-17 / 阅读(79) / 评论(0) 分类 TED演讲教育篇