With such a short window to capture data, the team must test and retest the instruments throughout new horizons' nine-year journey.Every year for about two months we are going to wait the spacecraft up and do some testing, some observations of celest

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2015-01-09 科学新发现：重新发现冥王星-24

New horizon's chief scientist is H. And where we are right now is a mission control for the new horizon's mission to Pluto, this is where we watch all the activities that are currently on the new horizon's mission, we have over here to the left the p

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2015-01-07 科学新发现：重新发现冥王星-23

76 years after Pluto's discovery and after 17 years of research and development, Nasa's new Horizon Spacecraft sets out for Pluto. Travelling at around a million miles a day, it's on a 9-year, 700-million-dollar journey to reach Pluto and review its

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2015-01-02 科学新发现：重新发现冥王星-22

Pockets of sub surface gas will build up and eventually burst through Pluto's frozen surface as geysers, Will G demonstrates how even a small increase in temperature produces a large geyser. Okay,we're going to put liquid nitrogen into this plastic b

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英语听力：探索发现 2012-04-08 荒野求生澳洲金伯利—16

But as the landscape alters, therere new dangers. Everythings just changing now. Look, the weather is getting worse, the wind picking up. But also, this river is really widening, which means that its prime crocodile territory. There are two types of

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英语听力：探索发现 2012-04-04 荒野求生澳洲金伯利—14

Im in the baking heat of the Kimberley in north Australia. Out here, over 3,000 people each year get bitten by snakes. Im gonna show you what to do if you come face-to-face with one. Its an olive python. Lets just get him out here. There you come. We

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探索发现：BBC:古代圣贤:佛祖释迦牟尼 Buddha-3

It was the start of a journey that would take from the foothills of the Himalayas and end here on the plains of Northern India. His mission was to make sense of human life. For me, Its genuinely exciting that what did Buddha discovered 25 centuries a

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探索发现：BBC:古代圣贤:佛祖释迦牟尼 Buddha-2

So what was going on? I want to investigate their revolutionary ideas to understand what set them in motion.-In this episode, I'm on the trail that most enigmatic philosophers, the Buddha, the wandering seeker of truth that challenged religious ortho

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探索发现：BBC:古代圣贤:佛祖释迦牟尼 Buddha-1

Since the dawn of civilization, the forces of nature and the whims of gods held sway over humanity. -But two and half thousand years ago, humankind experienced a profound transformation. Suddenly, there were new possibilities. -This is a time nationa

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英语听力：探索发现 2014-01-19 地平线：什么害死了我们的蜜蜂—26

But there is a second option to find ways of creating more bee-friendly enviornment. There is another reseach group at the University of Reading, who are trying a very different approach. Scientists Vicky and Jenny Wickens are investigating a way to

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英语听力：探索发现 2014-01-17 地平线：什么害死了我们的蜜蜂—25

One of the first thing they look at is taking place in the grounds of University of Reading. They are hand-pollinating strawberry plants. It might seem strange, but hand-pollination is something that's already been trying out in southwest China, wher

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英语听力：探索发现 2014-01-15 地平线：什么害死了我们的蜜蜂—24

So more than a third of different kinds of bees that once lived in this woodland have now disappeared. What's intriguing here is that their immediate habitat has barely changed.-But what do you think is causing that? If their habitat here is friendly

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英语听力：探索发现 2014-01-12 地平线：什么害死了我们的蜜蜂—23

This is good honey. It's very good honey. Yeah, it's very good honey. And this is the honey from the Refuday Tegmoden. Tegmoden,... is not very far, is it? Emnh, now the distance between the hive that produce this and the hive that produce that, how

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英语听力：探索发现 2014-01-10 地平线：什么害死了我们的蜜蜂—22

-Hmm, that's pretty lovely.He puts that down to his honey bees' rather unusual habitat. -We're on the roof of Tate Britain and here these are some of the bees that I look after for the Tate. -I have to say and congratulate. You're having really very,

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英语听力：探索发现 2014-01-08 地平线：什么害死了我们的蜜蜂—21

This is one of the most important experiments taking place. The one that could help us understand the degree to which research done so far is relevant to bees in the wild.-So what we know so far? There's a good arguement for saying that diseases and

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英语听力：探索发现 2014-01-03 地平线：什么害死了我们的蜜蜂—19

That's why I'm heading to south Sussex. I've heard about an experiment happening right now to establish how much pesticide bees are really getting in the wild. So I'm joining in Professor Dave Goulson and his team to find out how they are going to do

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英语听力：探索发现 2014-01-01 地平线：什么害死了我们的蜜蜂—18

Lin has recently become R* spokesperson in the neonicotinoid debate.-The big advantage of neonicotinoids is that you can plant the seed already treated. It means the farmer doesn't have to spray. If you've got to spray, it's very expensive. It's got

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英语听力：探索发现科学新发现：我们的大气层-12

Our atmosphere is in constant motion; the moving air that causes our weather circulates between the ground and 50,000 feet. It is the sun that drives this movement. When solar energy reaches earth, it heats the surface and atmosphere, but it does so

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英语听力：探索发现科学新发现：我们的大气层-13

The planet's rotation twists the air as it flows, helping form the hurricanes that lash the coasts. As moist air wells upwards, clouds become electrically charged and send lightning bolts crushing down to the earth, superheating the air to eighteen t

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英语听力：探索发现科学新发现：我们的大气层-14

A single river can carry three times as much water as the entire Mississippi, they provide almost half the annual rain fall for parts of the American Pacific coast, but when they remain in one area for a day or more, they can produce violent flooding

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