1983年4月7日,美国"挑战者"号航天飞机在太空飞行期间,两名航天员在太空自由自在地飘飞行走了3个多小时.这是人类首次不系绳索自由地在太空行走. 航天员为何能在太空行走呢?原

发表于:2019-01-02 / 阅读(59) / 评论(0) 分类 60秒科学

93 探究长寿基因 SCIENCE REPORT - September 12, 2001: Search for Long Life GeneBy Nancy Steinbach (Start at 1'01

发表于:2019-01-02 / 阅读(62) / 评论(0) 分类 科技之光

Researchers may have found an unusual way to reduce plastic pollution, one bite at a time. It turns out that the common wax worm can eat plastic. Also known as the Galleria mellonella, these worms may help reduce the waste caused by plastic bags. Eac

发表于:2019-01-02 / 阅读(75) / 评论(0) 分类 2017年VOA慢速英语(五)月

Scientists have uncovered the last meal of a hunter who froze to death 5,300 years ago in the mountains of Europe. Researchers said the discovery inside the stomach of a corpse, known as Oetzi the Iceman, showed what Europeans ate at the time. Shortl

发表于:2019-01-03 / 阅读(79) / 评论(0) 分类 2018年VOA慢速英语(七)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Want to live a happier life? Try surrounding yourself with happy friends or at least find friends with happy friends. A study published online December 4th in the Br

发表于:2019-01-08 / 阅读(80) / 评论(0) 分类 Scientific American(十二)月

Early modern humans didnt just chip away at stones to create their tools. They treated stone with fire in a sophisticated fashion, according to research published August 14th in the journal Science. About 72,000 years ago, our ancestors along coastal

发表于:2019-01-08 / 阅读(89) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science, I'm Christie Nicholson. Got a minute? If youve spoken to anyone in New York City, where Scientific Americans offices are, then youve heard about the rain, every day since mid-June. Still, were not in t

发表于:2019-01-08 / 阅读(95) / 评论(0) 分类 Scientific American(七)月

Twelve men have walked on the moon. And now you can, too. Virtually, that is. Because planetary researchers are enlisting everyday citizens in scientific exploration of the surface of the moon. At the Web site moonzoo.org, you can check out new high-

发表于:2019-01-08 / 阅读(73) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science.I'm Steve Mirsky. Got a minute? Hi. Im running. Im also telling some ofmy stem cells what to do right now. Well, I probably am, based on a new study with mice. We have what are called mesenchymal stemce

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 Scientific American(九)月

Some dinosaurs were really huge, and now we may have a better way to estimate just how heavy these giants were. Researchers have developed a method to weigh dinosaurs based on laser scans of their skeletons. The study is in the journal Biology Letter

发表于:2019-01-08 / 阅读(124) / 评论(0) 分类 Scientific American(六)月

Researchers observed the behavior of amputated octopus arms, which remain very active for an hour after separation. Those observations showed that the arms never grabbed octopus skin, though they would grab a skinned octopus arm. The octopus arms did

发表于:2019-01-08 / 阅读(133) / 评论(0) 分类 轻松英语

DEVELOPMENT REPORT - Seeing More Forest for the Trees: A Brighter Future for World's Forests?By Caty Weaver Broadcast: Monday, December 11, 2006 This is the VOA Special English Development Report. A r

发表于:2019-01-11 / 阅读(119) / 评论(0) 分类 2006年慢速英语(十二)月

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: Chickens at a market in Bangkok. And I'm Barbara Klein. This week, we will tell how a deadly bird flu virus is able to infect people. We will also tell about

发表于:2019-01-11 / 阅读(131) / 评论(0) 分类 VOA慢速英语2008年(二)月

New Treatment Could Prevent, Reverse Alzheimers New research suggests that a brain protein that has changed form may be the cause of brain disorders -- including Alzheimers Disease. Researchers say they have developed a treatment that may cause the p

发表于:2019-01-12 / 阅读(85) / 评论(0) 分类 2015年VOA慢速英语(八)月

Unkind Words Hurt the Brain From VOA Learning English, this is the Health Lifestyle report. There is a popular saying in the English language: Sticks and stones may break my bones, but names will never hurt me. Well, that is not true. Unkind words, n

发表于:2019-01-12 / 阅读(140) / 评论(0) 分类 2016年VOA慢速英语(九)月

37 研究表明2500万年前流星曾碰撞过地球 DATE=4-18-01 TITLE=SCIENCE REPORT - Meteor Collision With Earth BYLINE=Jill Moss (Start at 59

发表于:2019-01-16 / 阅读(120) / 评论(0) 分类 科技之光

SCIENCE IN THE NEWS - U.S. Seeks to Cut Levels of Chemical Used for Teflon, Other Non-Stick ProductsBy Caty Weaver, Brianna Blake and Jerilyn Watson Broadcast: Tuesday, February 07, 2006 (MUSIC) VOICE

发表于:2019-01-16 / 阅读(94) / 评论(0) 分类 2006年慢速英语(二)月

READING: Scientists may have discovered something that could be very welcome news for ice cream lovers around the world. Their discovery is a new ingredient that could slow down the rate at which ice cream melts and gives the ice cream a smooth textu

发表于:2019-01-22 / 阅读(562) / 评论(0) 分类 英语生活新闻

HEALTH REPORT - Study Links Red Meat to Higher Risk of Breast CancerBy Caty Weaver Broadcast: Wednesday, November 22, 2006 This is the VOA Special English Health Report. Exercise and keeping a healthy

发表于:2019-01-30 / 阅读(58) / 评论(0) 分类 2006年慢速英语(十一)月

SCIENCE IN THE NEWS - More Fish, Less Tobacco Could Lower Risk of Blindness in Older PeopleBy Brianna Blake, Lawan Davis and Jerilyn Watson Broadcast: Tuesday, August 08, 2006 VOICE ONE: This is SCIEN

发表于:2019-01-30 / 阅读(175) / 评论(0) 分类 2006年慢速英语(八)月