Earth and Sky:Electric Fish 发电鱼

Electric Fish 发电鱼 One way that Harold Zakon and his team find fish to study is to put electrical detectors into the bottom of murky streams in Venezuela. This works because certain fish emit pulses of electricity. Discover electric fish -- on tod

Alistair Brownlee 英国铁人三项运动员

Pursue, attempt 追求，尝试 This week we follow the training of the British triathlete team, including Alistair Brownlee. Alistair is the current World Triathlon Champion. The 24-year-old also won the title in 2009 and is one of Britain's best ho

Talking Sport: Ivan Ukhov 伦敦谈体育：俄罗斯跳高运动员

Weakness, obstacle 弱点，障碍 This week we meet Russian athlete, Ivan Ukhov. Ivan is a high jumper and is hoping to compete at this year's Olympic Games. He is the current European Indoor champion and also won the world indoor championship title

万花筒 2008-06-04&-06-05

Amid all the tradition and history of Katmandu, a profound change is in the air. In fact, it might literally clear the air, reducing the choking pollution which has blighted this congested valley. The streets of the capital are gradually being taken

SSS 2009-04-22

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because

王强口语 第一册 Short conversation 014

Lesson Fourteen Short Conversations Read aloud the concersation two times, and then listen to the tape without looking at the text. The Pursuit for Punchy Flyers Lucy: Come on, come all to the grand opening of The Electric Palace. You'll find high vo

纯正英语一分钟-current events

I love the news and current events. Im addicted to whats happening in the world. It doesnt matter what kind of news it is, I love watching it. Even if its from countries Ive never heard of. Ill even watch the same news programme three or four times a

可以录音和发声的衣服(有声)

M.I.T. researchers have developed a piezoelectric fiber that would react to electric currents and have the potential to record or produce audio. Clothing is so yesterday. I mean, really, what can it do? It cant pick up sound, or beep at us if somethi

Electric Bike Ban in New York Hurts Food Delivery Workers

A ban on electric bicycles in New York City is hurting delivery workers who depend on them to earn a living. Many of the workers are immigrants. Electric bicycles, or e-bikes, have foot-powered pedals like other bicycles. But they also have electric-

机械类词汇大全-34

1387 、 电木 Bakelite 1388 、 电玉；醛树脂 ureaformaldehyde(UF) 1389 、 电池 cell 1390 、 电池组 battery 1391 、 电位；电势 electricpotential 1392 、 电位计 potentiometer 13

SSS 2009-10-07

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

SSS 2010-07-15

Clothing is so yesterday. I mean, really, what can it do? It cant pick up sound, or beep at us if somethings wrong. Or can it? M.I.T. researchers say theyve developed a fiber that would allow clothing to eventually do those things. Their study is in

旅馆英语对话-Swimming Pool(2)

A: Does this hotel have a pool? B: I'm sorry, sir, we don't have one. However, in our gym, we do have swim stations. A: I'm not sure I understand. B: Think of a deep bathtub that you can swim in, but against a current. A: Cool. What will they think o

售房英语对话-Rejecting a Counteroffer(3)

A: I was wondering if the buyers have accepted my counteroffer. B: Yes, I just faxed you the information an hour ago. The buyers have a counteroffer for you. A: How much did they counteroffer? B: They now are offering to pay ten thousand less than yo

科学美国人60秒 SSS Nobel in Chemistry for Molecular Machines

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

托福听力分学科词汇（二）

物理学 statics 静力学 motion 运动 inertia 惯性 gravitation 引力 relativity 相对 gravity 地心引力 vibration 震动 medium (media) 媒质 frequency 频率 wavelength 波长 pitch 音高 intensity 强度 echo 回声 resonance 回声，洪

2015年CRI Electric Cars Make Headline Again

Official figures from the Ministry of Transportation show emissions from car exhaust account for 31 percent of the country's total air pollution. In an effort to bring that figure down, the central government has been supporting a series of subsidies

2018年CRI Electric cars unveiled at Beijing Motor Show

Automakers are rolling out their new electric vehicles at the 2018 Beijing Motor Show, the motor industry's biggest sales event this year. Carmakers expect new growth in China's market despite the looming threat of a trade war between China and the U

Electric motor made in single molecule

BEIJING, Sept. 6 (Xinhuanet) -- Scientists from Tufts University of the U.S. have created the world's smallest electrical motor in a single molecule. The finding was published in the journal Nature Nanotechnology on Monday. In the research, scientist

英国发明牙齿治疗新技术

LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin