单词：potential energy of spring
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Jill Stuart combines the thrill of the 50s with the fun of the 80s for Spring 2001. Off-the-shoulder looks and fitted capris, micro minis and cinched waist, Madonna and 1)Brigitte Bardot; Jill Stewart
疯狂英语2001年
Passage 20 Waves How does light get from the sun to the earth? How does music get from the stage to the audience? They move the same way in waves! Light and sound are forms of energy. All waves carry energy, but they may carry it differently. Light
英语专业四级听写
How does light get from the sun to the earth? How does music get from the stage to the audience? They move the same way in waves! Light and sound are forms of energy. All waves carry energy, but they may carry it differently. Light and sound travel t
新东方CET6阅读
By Peter Fedynsky Kyiv 30 September 2007 Ukrainians cast their ballots in a special parliamentary election, in which domestic and international observers sought to assure an honest vote.Opposition leader Yulia Tymoshenko says she will ask President V
2007年VOA标准英语（九月）
本讲为2005年下半年新的教学内容，请对照教材听录音！ Wind is the characteristic of spring. Women _being_ (be) the weaker and dependent sex , it is only natural that they should cr
自考英语（一）78讲
Welcome to This I Believe, an NPR series presenting the personal philosophies of remarkable men and women from all walks of life. Support for NPR Podcasts comes from Visa, offering the Visa signature card, featuring concierge services for travel, din
2007年NPR美国国家公共电台
Welcome to the Science Talk, the weekly podcast of Scientific American posted on February 18th, 2010. I am Steve Mirsky. And you know what the hottest sport in the world is right now? Thanks to the Winter Olympics, it is, of course, curling. That's t
Scientific American(二)月
Potential energy in a crossbow When we think of the concept of energy, we often think of objects in motion: a car rolling down a hill or a jogger running up a hill. This kind of energy-in-motion, called kinetic energy, isnt the only kind of energy. A
英语时差8，16
Task 2: Mental Energy and Season You may not believe that our mental energy varies from season to season. But some people think that it does. Research has shown that climate and temperature have a definite effect on our mental abilities. Scientists h
新视野大学英语：视听说教程 1
And it's why, over the last eight years, we've modernized the government's approach to innovation for the 21st Century. 也因此,在过去的8年里,我们让政府在21世纪的创新方式上现代化。 We've jumpstarted a clean energy revolution
奥巴马每周电视讲话
It Might As Well Be Spring Sophie Milmanm I'm as restless as a willow in a windstorm I'm as jumpy as a puppet on a string I'd say that I had spring fever But I know it isn't even spring I'm as starry eyed and gravely discontented Like a nightingale w
好听的英文歌曲
Motor-Free Device Reduces Stress from Walking 新型可穿戴附加设备有效减轻腿部肌肉的负荷 Devices that help people walk were once thought to be difficult, if not impossible, to design. Until recently, such a device required electrici
2015年VOA慢速英语(四)月
New research suggests ayahuasca, a jungle vine found in the Peruvian rainforest, can have a powerful effect on the human central nervous system when brewed with other plants. Researchers say one of ayahuasca's most promising uses could be in treating
VOA标准英语2010年(三月)
By Selah Hennessy London 20 October 2009 A global watchdog group says world oil supplies are running low and that may lead to food shortages and spiraling armed conflict. Britain-based Global Witness says governments are doing nothing to prepare for
VOA标准英语2009年(十月)
Fusion is how stars produce energy. It occurs when the nuclei of light atoms, such as hydrogen, are fused together under extreme pressure and heat. Tokamak Energy, from Oxfordshire, believes that the third version of their compact, spherical tokamak
2015CRI中国国际广播电台
Arctic ground squirrels hibernate like other small mammals, but with a unique twist. They can lower their body temperature right down to almost minus 3 degrees centigrade. But thanks to a biochemical super-cooling process, they dont actually freeze.
探索与发现2012年
By Lisa Schlein Geneva 15 September 2007 The United Nations warns floods in West Africa could provoke an invasion of locusts in Mali and Niger. It says it is critically important that UN experts be given access to the locust-prone region so they can
2007年VOA标准英语（九月）
How to Create Passion Anywhere and Anytime Remember Science class? Mr. Thatcher, sophomore year in high school, taught us about potential and kinetic energy. I was way more interested in Pam Miller, who sat perilously close to me. But on Mr Thatcher
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Swinging Physics: Potential And Kinetic Energy Working Together 动能与势能相互作用 动能是所有能看到的运动的能量，包括物体的，微粒的或质点集的运动等。 势能(Potential energy )是位置的函数，例如把一个
英语听力文摘 English Digest
Sit on a swing, let someone push you, and away you go. But what happens if the person who pushed you walks away, and you want to swing faster and higher. If you've ever been in the second grade, you know the solution to that. Just start pumping your
英语时差8，16