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In 1900 legendary physicist Max Planck described the way energy gets dissipated from any nonreflective object, called a blackbody. But even Max said if something else is r
英语听力材料2009-08-06 -
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I’m Emily Chang in Beijing.China’s economy is massive, complex and official statistics are often disputed. But we do know that this is the epitome of an export-driven ec
英语听力材料2009-08-05 -
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The BMW Sauber Formula One Team revealed this season's latest car back in January, but this will be the last such unveiling. BMW's quitting the sport at the end to the c
英语听力材料2009-08-05 -
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Poor old spleen, it never got the recognition it deserved. Until now. Scientists had known that the spleen is part of our immune systems. But it was considered expendable,
英语听力材料2009-08-05 -
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The annual Leonid meteor shower is probably raining down the most meteors before dawn today and Tuesday, but unfortunately, the waning gibbous moon is spoiling this year'
英语听力材料2009-08-04 -
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Although she was discovered on Britain's Got Talents, Susan Boyle is reportedly launching a professional music career here in the US. According to London's Daily Mirror,
英语听力材料2009-08-04 -
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People swing their arms when they walk. But did you ever wonder why? Does it help us keep our balance? Is it a relic from our evolutionary past? Is it because we look like
英语听力材料2009-08-04 -
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We can’t predict with certainty what the future will bring, but we can be certain about the issues that will define our times. And we also know this, the relationship bet
英语听力材料2009-08-04 -
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The Obama administration is hailing recent improvements in U.S. economic indicators, but says more must be done to put the United States on solid economic footing. Treasu
英语听力材料2009-08-03 -
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American Morning, the most news in the morning, period. Weekdays 6 Eastern.It is a video that has critics asking "Governor, what were you thinking?" But this morning, Cali
英语听力材料2009-08-03 -
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The World Health Organization says getting new mothers to breast-feed their infants could save 1.3 million children's lives each year. The theme of this year's World Bre
英语听力材料2009-08-02 -
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About 100 Iranian activists and political moderates went on trial Saturday to face charges related to massive protests following the controversial presidential election. T
英语听力材料2009-08-02 -
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二维时代，日本曾经是令全世界瞩目的“动漫王国”，这里拥有全世界最多的成人动漫阅读人口，拥有最为发达的动漫产业。更重要的是，这里大师云集，宫崎骏、大友克洋、押井守等动漫大师已
英语听力材料2009-08-01 -
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If a good night sleep seems like a faint memory, blame the economy. One third of Americans are losing sleep over their concerns about their personal finances or the econom
英语听力材料2009-08-01 -
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The question again, that comes up around the world is what you experienced during an interview on Wednesday in Thailand. Let’s roll that.
Will we ever get to see you as
英语听力材料2009-08-01 -
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Good evening. It came at the end of a press conference that was almost entirely about health care, a reporter asked President Obama about the arrest of a man he knows, a d
英语听力材料2009-08-01 -
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You’ve heard of synchronized swimming. But what about synchronized blinking? No, it’s not a new Olympic sport for slackers. It’s something that seems to happen when we
英语听力材料2009-08-01 -
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The 24th FISM World Championships of Magic Opens in BeijingThe International Federation of Magic Societies, or FISM, is an international body that brings together the worl
英语听力材料2009-07-31 -
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The United States has upped the stakes in its efforts to force Iran to back down over its nuclear program. Secretary of State Hillary Clinton says the US is ready to boost
英语听力材料2009-07-31 -
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Anticipation is mounting for the moment the sun will slip behind the moon over Shanghai, touted as one of the best spots to watch the longest total solar eclipse of the 21
英语听力材料2009-07-31 -
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Remember Dick and Jane? And their dog Spot? Maybe you read about them in first grade. See Spot run. Run, Spot, run! Well, a new study in the journal Psychological Science
英语听力材料2009-07-31 -
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Biologist and nature photographer Mark Moffett uses his camera like a microscope. For 30 years, he's focused his lens on the tiny, complex world of ants. He compares hims
英语听力材料2009-07-30 -
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American employers have long been nervous about the mix of work and play on the Internet. Not only could the many distractions available online waste employee time for whi
英语听力材料2009-07-30 -
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A man who used a chainsaw to fight off an attacking mountain lion. Dustin Britton was camping in Wyoming with his wife and two toddlers. The ex-marine alone, cutting firew
英语听力材料2009-07-30 -
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When Michael Phelps is out of the water, he towers over mere non-Olympic mortals. Then he slips into the pool, and makes record-breaking speed seem effortless. His height,
英语听力材料2009-07-30
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