单词：mass-energy conversion
单词：mass-energy conversion 相关文章
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
创新英语
Broadcast: Jan 22, 2003 By Marilyn Christiano VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, Explorations. Today we tell about a scientist who
VOA2003（上）-科技导航
US-Russian Nuclear Conversion Program Ends 美俄结束核转换项目 WASHINGTON Uranium converted from Russian nuclear warheads has provided an estimated 10 percent of U.S. electric power in recent years. The 20-year Megatons to Megawatts program h
VOA常速英语2013年(十二月)
When the wind picks up at the foot of the Rockies, there are those who believe they can hear the future. At the National Renewable Energy Laboratory, making alternative power sources competitive with fossil fuels has been a mission since the energy
国家地理2008年
分集介绍：导数，斜率，速度与变化率 Derivatives.slope.velocity.rate.of.change
麻省理工学院公开课：单变量微积分
One hundred years ago today, September (the) 27th, 1905, a physics paper was dropped into the mail, addressed to a German journal called AT. The paper was penned by a 26-year-old Swiss patent clerk with dark curly hair years before he sprouted that s
2005年NPR美国国家公共电台
AS IT IS 2014-06-13 Companies Make Gas from Garbage 美国公司从垃圾提取天然气 The future in energy production is here. And some of the materials used to supply the energy may surprise you! Companies have developed a way to turn plant waste
2014年VOA慢速英语(六)月
By Sabina Castelfranco Rome 23 March 2008 Thousands of pilgrims gathered at the Vatican's Saint Peter's Square for Pope Benedict's open-air Easter Mass. In his Easter message, the Pope urged solutions to world trouble spots including Sudan's troubled
VOA标准英语2008年（三月）
拉脱维亚垃圾处理厂助益番茄农场 Latvian consumers who enjoy these yellow tomatoes may not even know that they are locally grown, let alone that they grew with the help of their own garbage. 喜爱这些黄色西红柿的拉脱维亚消费
VOA标准英语2015年(十二月)
Eagerly-awaited Technology Turns Garbage into Fuel When a garbage truck dumps its smelly cargo onto the tipping floor at the Fiberight companys pilot plant in southern Virginia, manager Randy Garrett sees fuel in the making. This is the truly remarka
VOA标准英语2014年(五月)
When the wind picks up at the foot of the Rockies, there are those who believe they can hear the future. At the National Renewable Energy Laboratory, making alternative power sources competitive with fossil fuels has been a mission since the energy c
自然百科2008年
The mystery of what could count for the quasars' extraordinary brightness was the hot topic in astronomy during the 1960s. As astronomers began to grapple with the new enigmatic objects that had been found by the radio telescopes, one astronomer, kee
探索与发现2013年
BERLIN, April 25 (Xinhua) -- A study recently published in the journal Nature Chemical Biology opens up new avenues in biohydrogen research, the Technical University of Berlin (TU Berlin) said on Friday. Scientists at the TU Berlin succeeded in expla
英语新闻
Science and Technology 科技 Looking for the Higgs 捕获希格斯粒子 Enemy in sight? 敌军现身？ The search for the Higgs boson is closing in on its quarry 希格斯玻色子的研究逼近其目标 ON JULY 22nd two teams of researchers base
经济学人科技系列
EXPLORATIONS – Albert Einstein By Marilyn Christiano Broadcast: Wednesday, February 23, 2005 VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, E
Explorations
Bryan Wilson works to cut pollution from cookstoves, two-stroke engines, diesel Shelley Schlender | Fort Collins, Colorado 10 May 2010 Engineer Bryan Willson is developing cleaner-running, more energy-efficient products for people in the developing w
VOA标准英语2010年(五)月
中国富煤缺油少气的能源资源特点，造成能源消费主要依赖于煤炭，石油则主要依靠进口，而且带来一系列环境问题。煤清洁转化技术则可以帮助缓解这一难题。近日专家表示，我国将在2020年
实用英语
His famous equation, E =mc 2 , did not appear with the paper, but came in a brief supplement that followed a few months later. As you will recall from school days, E in the equation stands for energy, m for mass, and c 2 for the speed of light square
万物简史
Did you know that enough sunlight falls on the earths surface every minute to provide energy for the entire world? The trick, though, is turning sunlight into power we can use for things like heating water and making electricity. And there are two ty
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