Inventors Win Award for Machine that Creates Water from Air

Water is a necessary resource for the health and survival of living things. But the availability of fresh water is decreasing for much of the worlds population. The United Nations estimates that about 3.6 billion people currently live in areas that f

哈佛校长的演讲

Today, I speak from this podium a final time as your president. As I depart, I want to thank all of you - students, faculty, alumni and staff - with whom I have been privileged to work over these past years. Some of us have had our disagreements, but

CNN 2011-06-21

I use it today again to apologize to the personal mistake I have made and embarassment I have caused. I made this apology to my neighbors, to my constituents, but I make particularly to my wife Huma. I hope to be able to continue to work at citizens

SSS 2009-08-21

The Great Pacific Garbage Patch may be disappearing, and not in a good way. New research presented at the biannual meeting of the American Chemical Society reveals that polystyrene actually can break down in seawater. Polystyrene is probably better k

60秒科学:水分解的新途径-病毒

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

CNN 2010-07-08

Both sides appear to be trying to find a way out of this, a way where they can save face on the one hand, but also still appear to be top of issues for the constituents on the other hand. And certainly what we've seen in the past couple of days is a

SSS 2010-04-14

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

NPR 2011-06-13

Calls for the resignation of Congressman Anthony Weiner keep coming from both sides of the aisle. The New York lawmaker has decided instead of stepping down, he'll undergo treatment following his Twitter scandal. Fellow Democratic Congressman Steny H

VOA标准英语2010年-Years of Drought Means End to Way of L

The rains are finally coming back to Kenya, but drought still persists in the central region of Isiolo South. There, many pastoralists have had to give up their way of life. It looks like a war zone. What once were emaciated, dehydrated cattle are no

AGRICULTURE REPORT - Simple Ways to Protect Water Quality

AGRICULTURE REPORT - Simple Ways to Protect Water Quality By Mario Ritter Broadcast: Tuesday, July 26, 2005 I'm Barbara Klein with the VOA Special English Agriculture Report. Afghans wash carrots in d

奥迪用“空气和水”合成新燃料

German Car Manufacturer Audi Creates Fuel From Air And Water 奥迪用空气和水合成新燃料 Creating an alternative green or carbon neutral fuel to replace gasoline has been the holy grail for scientists for many years. However, while there has

托福考试：TOEFL模拟试题

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

港交所启用波动调节机制

Hong Kongs stock market has moved into line with global peers, with the exchange operators launch yesterday of a circuit breaker to prevent extreme volatility. 香港股市昨日启用市场波动调节机制以防止极端波动，此举使其与全球

英闻天下——83 Tap Water Safe to Drink: Beijing Waterworks

The Beijing Waterworks Group, the company responsible for tap water supply in the capital, says starting from next week, the data on tap water quality will be available on the company's website. Major indexes, including degrees of color, turbidity an

巧妙拒绝别人-设定让所有人都知晓的界限并坚决执行(1)

巧妙拒绝别人 Establish boundaries and honor them for all to see 设定让所有人都知晓的界限，并坚决执行 Let your constituents know your priorities and limits. Don't continually break your own rules about when you are available or

听听自由的呼声:我是自由主义者

I am a liberal. I believe government is often the solution, not always the problem. I believe government should enact laws that protect rights, not strip them away. I'm for laws that expand equality, not restrict it. I believe in creating policies, n

British shadow chancellor resigns

LONDON, Jan. 20 (Xinhua) -- British Shadow Chancellor of the Exchequer Alan Johnson resigned on Thursday for family and personal reasons.I have decided to resign from（辞职） the shadow cabinet for personal reasons to do with my family. I have fo

The Twilight Zone

This applicant shows that her interest in public interest law flows naturally from her volunteer activities and life experiences. When you finish this essay, do you have a sense of unity and completion? She tied her conclusion both to the highlights

More Nigerians Slip Into Poverty, Particularly in North

Nigeria is Africa's most populous nation and its biggest oil producer. The West African country exports more than two million barrels of crude oil a day. Despite its oil wealth, however, a new government study says the number of Nigerians sinking int

PBS高端访谈:英国退欧公投有明显的代沟及分歧

GWEN IFILL: We return now to the story of Brexit, and a look at the generational divisions among British voters in last week's referendum. Hari Sreenivasan is in London. HARI SREENIVASAN: Carshalton, less than 15 miles from the center of London. Unli