英语听力：探索发现 2013-01-23 冰河新新州 Ice Age Oasis—18

Meanwhile, the ground sloth, like the mastodons, must eat most of the day to fuel its huge bulk. This may be the ice age, but by midday, temperatures soar, drawing another predator to the spring to drinkthe notorious saber-toothed cat. Most creatures

英语听力：2013-11-27 地平线：什么害死了我们的蜜蜂—3

-So you had a tough year.-We have got that, yeah. It's been an incredibly bad winter, and that's companed with probably the worst summer we ever have had as well, last year. -So these boxes should be out, full of bees working. -Yeah, they have been b

英语听力：2013-11-29 地平线：什么害死了我们的蜜蜂—4

The thing is bees are very sensitive to the weather. If the temperature falls below fourteen degrees or if it rains they just won't leave the hive. The nectar of the flowers is also temperature dependent. So if it's cold, there will be less nectar an

英语听力：2013-12-01 地平线：什么害死了我们的蜜蜂—5

-Do we have any fruits?-No fruits. There's no fruits available today. -Perhaps some tomatoes? -Tomatoes? No, no. Absolutely no tomatoes. It's fruit pollinated by bees. Like it, enjoy your meal? -No, it's little bit dry, though. -Bit bland. -OK. You m

英语听力： 2013-12-04 地平线：什么害死了我们的蜜蜂—6

The first step is to try to really understand the enemy. Poor little bee. So Jean, where is it on this bee that? Ok. I think if you looked even with a naked eye. Just to the side of the abdomen. Yes, oh, on the belly there. That grape red colored. Ok

探索发现：History Channel:西恩宾回顾滑铁卢战役-25

好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件

探索发现：History Channel:西恩宾回顾滑铁卢战役-26

好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件

探索发现：History Channel:西恩宾回顾滑铁卢战役-27

-French colonies are now reaching for the front line of the ally position, famous sunk lane, as you can see, just here. It was actually slightly deepen underneath those -...looks quiet. -It looks quuiet, but it's no quiet. There's a little bank just

探索发现：History Channel:西恩宾回顾滑铁卢战役-24

好莱坞演员西恩宾（Sean Bin）回顾了滑铁卢这一历史上最具决定性之战役的故事。在影片中，他将引述那些当时参战的普通士兵的实际经历来讲述发生在1815年6月18日这一天的极具戏剧性的事件

2015-02-25 BBC:星光七纪元-11

This whole process explains the distinctive shape of all solar systems including our own. The reason why you see all the planets going around the Sun in the same direction on the same plane is because they are all formed from the same belt, from the

2015-02-20 BBC:星光七纪元-10

At this time people very much believed that God had created a template for the heavens and he'd used pretty much the same template to create the society as well, and so with this as above so below belief, any change in the heavens immediately had hug

2015-02-13 BBC:星光七纪元-9

But when a star is born and starts its life story, scientists have discovered that something else very important can begin. The first person to get an inkling of the second story of creation was Nicolas C, the father of modern astronomy, an accidenta

2015-01-30 BBC:星光七纪元-5

Many regions within these clouds can stay like that for ever for millions of years until something happens, a trigger and then a star forms.The trigger for such a monumental event doesn't have to be much, two clouds conbine as they pass, or a distant

2015-01-28 BBC:星光七纪元-4

This cluster the Pleiades mentioned by Homer in the Odyssey, they appear in the Bible and in some of the goddess by the Aztecs and the Maya, but the interesting thing is that the Pleiades are so young, that early dinosaur never saw them, because at t

2015-01-16 BBC:星光七纪元-1

Each night after the sunsets, sit back, look up and you can witness an epic drama playing above our heads. One involving a cast of billions, the stars. Every one with its own story to tell. There are old red giants, so puffed up. They are coming apar

2015-01-14 科学新发现：重新发现冥王星-25

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

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

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

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

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