纺锤状感觉细胞

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(144) / 评论(0) 分类 VOA2003(下)-环境与健康

Here's What Playing an Instrument Can Do for Your Brain 弹奏乐器对大脑有什么积极影响 Great news for all you musicians out there: Playing an instrument may boost reaction time, according to a new study. The added perk is something people

发表于:2018-12-12 / 阅读(62) / 评论(0) 分类 实用英语

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(122) / 评论(0) 分类 国家地理2008年

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:2019-01-02 / 阅读(140) / 评论(0) 分类 60秒科学

Podcast is sponsored from the People of American Chemistry who provide the plastics, medicines and innovations that make life modern. Learn more at americanchemistry.com. This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll ju

发表于:2019-01-08 / 阅读(96) / 评论(0) 分类 Scientific American(五)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(93) / 评论(0) 分类 Scientific American(五)月

Plants, Humans Share Sensory Awareness The Botanical Garden is a blooming paradise, about four hectares filled with a rich array of some 3,800 species drawn from Israels diverse landscape and from around the world. Danny Chamovitz, director of the Ma

发表于:2019-01-09 / 阅读(82) / 评论(0) 分类 VOA标准英语2013年(四月)

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(107) / 评论(0) 分类 2007年VOA标准英语(九月)

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(79) / 评论(0) 分类 VOA标准英语2008年(五月)

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(101) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(101) / 评论(0) 分类 VOA常速英语2008年(四月)

1. Cyber Sickness 晕屏症 Also called digital motion sickness, symptoms that range from headaches to woozy feelings can occur when you quickly scroll on your smart phone or watch action-packed video on your screen. 这种病也被称为数字晕车,

发表于:2019-02-03 / 阅读(809) / 评论(0) 分类 阅读空间

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(223) / 评论(0) 分类 英语新闻

More than a decade ago, a 43-year-old woman went to a surgeon for a hysterectomy. She was put under, and everything seemed to be going according to plan, until, for a horrible interval, her anesthesia stopped working. She couldn't open her eyes or mo

发表于:2019-02-05 / 阅读(310) / 评论(0) 分类 阅读空间

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(207) / 评论(0) 分类 趣味英语

Just Listen To Your Heart How often do you have a really strong gut instinct and it proves to be wrong? How often do you override that instinct and then kick yourself later on? My guess would be that if youre anything like the people that come to me

发表于:2019-02-08 / 阅读(84) / 评论(0) 分类 阅读空间

It's the best way to reacquaint yourself with life's simplest pleasuresthe scent of lilacs, the sight of the sun rising and setting and the taste of fresh-baked bread. My 5-month-old son sat in his high chair watching my every movethe flash of the kn

发表于:2019-02-11 / 阅读(149) / 评论(0) 分类 阅读空间

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(160) / 评论(0) 分类 英语新闻

Films and TV shows are already effective at tugging our heartstrings or putting us on the edge of our seats. 电影和电视节目已经很大程度上的扣动着我们的心弦,让我们在座位上看得如痴如醉。 But new technology could b

发表于:2019-02-19 / 阅读(89) / 评论(0) 分类 阅读空间

In mammals, the sex of a baby is determined by the combination of chromosomes it inherits from its parents. Nearly every cell in a male body has two different sex chromosomesone is shaped like an X and one is shaped like a Y. Females also have two se

发表于:2019-03-06 / 阅读(117) / 评论(0) 分类 英语时差8,16
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