2007年NPR美国国家公共电台一月-A Broken Foot, an Artificial Leg, and a R

Recording technology has changed a lot over the years, but you can still do one essential thing. You sit in front of a microphone and you tell a story, which here we are again this Friday morning because it's time for StoryCorps. It's an oral history

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[00:00.00]macro--manipulate A majestic opportunity [00:02.85]一次绝好的机会 [00:05.69]No one manipulated Scott in any way, [00:09.17]没入对斯科特有任何操纵， [00:12.64]he just wanted to step out of the mainstream and do something c

闭着眼睛飘单词 四级词汇5

[0:0]arithmetic arouse arrange算术 引起,唤起 安排,准备 [0:37.8094]arrest artificial artistic aspect逮捕,拘留 人工的,人造的 艺术的,美术的 方面,面貌 [1:31.0307]assemble assembly assess asset混合,聚集 立法机构,议会 对...估价 人价值的,优点 [2:22.6436]as

创新英语-Scientists Create Energy-Making Artificial Leaf

Scientists at the Massachusetts Institute of Technology (MIT) have created what could be a breakthrough in providing clean, alternative energy. Researchers have invented an artificial leaf that splits water into hydrogen and oxygen and stores the ene

VOA标准英语2015--Researchers Create Artificial Skin With Sense of Touch

Researchers Create Artificial Skin With Sense of Touch Scientists have recently made considerable gains in creating human-like artificial limbs, but they still look and feel artificial. That could change with a development from South Korea. Researche

科学美国人60秒 SSS 2013-09-18

This Scientific American 60 Second Science, I'm Sophie Bushwick, got a minute.Developed countries spend about 3 percent of all their electrical power treating waste water, the juice purified contaminated material so it can be returned safely to the e

英文书摘精选 糖---甜蜜的杀手

Some methods of preserving food are easy to understand. 一些保存食物的方法很容易理解。 For example, it's easy to see that freezing your food, or packing it in salt, would make it inhospitable to the microbes which would otherwise cause

60秒科学:消化寿司的酵母素

Traditional Sushi Eaters Have Specialized Gut Bacteria If you want to shell a walnut, it helps to have a nutcracker. And if you want to digest seaweed, it helps to have the right enzymes. Now, a study in the journal Nature shows that Japanese peopleb

60秒科学:Artificial Muscle Brings Back Blink

Artificial Muscle Brings Back Blink A study in the Archives of Facial Plastic Surgery reports the development of an artificial muscle system that could restore the ability to blink to stroke and injury patients. Cynthia Graber reports Most of us blin

SSS 2010-04-08

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute. If you want to shell a walnut, it helps to have a nutcracker. And if you want to digest seaweed, it helps to have the right enzymes. Now, a study in the jo

VOA标准英语2011--Microbe Could Help Battle Malaria

Microbe Could Help Battle Malaria Researchers have discovered a bacterium in the gut of the Anopheles mosquito which may someday be used to destroy and, therefore, prevent the spread of the disease-causing parasite. The World Health Organization esti

Artificial Leaf Turns Sunlight into Electric Power

Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

VOA标准英语2011--Artificial Blood Vessels Work Well, Have

Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

美国国家公共电台 NPR A Microbe Hunter Plies Her Trade In Space

RACHEL MARTIN, HOST: A few years ago, an airplane touched down on a grass runway in the Democratic Republic of Congo, and out stepped microbiologist Kate Rubins. KATE RUBINS: If you put your finger on a map in the middle of Africa, that's about where

VOA常速英语2008年-Rat Study Links Weight Gain to Artificial Sweet

By Melinda Smith Washington, DC 15 February 2008 Obesity is becoming a worldwide problem, even in developing countries. But diet drinks and food prepared with sugar substitutes do not seem to help curb people's appetites. Now a new study may provide

[科学美国人60秒] SSS 2015-08-06

Microbe organize live in you ，on you ,in soil in clouds ,and below the ocean floor ,that last bags of single self.. is particularhard to study, not only the samples are difficult to obtain ,but they can easily be contaminated with all that other mi

学个词Learn a Word 第1713-artificial

今天我们要学的词是 artificia。Artificial 人造的。artificial intelligence 人工智能。不久前，The FDA approved a new artificial retina device that would help some people regain part of their sight. 美国食品和药物管理局批准

VOA标准英语2011--Artificial Speech Mimics Real Thing

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In 1997 scientists successfully activated some anthrax spores that had lain dormant for eighty years in a museum display in Trondheim, Norway. 1997年，科学家们成功地激活了已经在挪威特隆赫姆博物馆休眠了80年之久的一些炭疽

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Some methods of preserving food are easy to understand. For example, it's easy to see that freezing your food, or packing it in salt, would make it inhospitable to the microbes which would otherwise cause it to spoil. You might wonder, however, about