标签：探索发现 相关文章
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
探索与发现2015年
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
探索与发现2015年
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
探索与发现2015年
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
探索与发现2015年
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
探索与发现2015年
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
探索与发现2015年
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
探索与发现2015年
But the sun's violent burst can harm us, its active nature is what allows us to live at all, because the sun also eject the solar wind, and energized stream of particles that head out into space, and that we can see passing-off as it bounces off our
探索与发现2015年
What most of us have learnt is that the Sun's reliable, dependable, unchanging, but its serene outward appearance that we take for granted belies a truth about all middle age stars, beneath the surface, there is a battle raging, uncovered by the scie
探索与发现2015年
Energy isn't created or destroyed,it's transferred, so it's transferred from the center of the Sun through the atmospheres to us in many forms, warmth and light via the plants and via the food that we eat. I can really understand why ancient civiliza
探索与发现2015年
Now the Sun will be burning hydrogen as the stars doing in the main sequence until the hydrogen is exhausted in the core, and at that point the stars start to die, the outer layer of the Sun will expand, the Sun will move away from the main sequence
探索与发现2015年
有些探索发现是为了去探索人类文明去的....... Rob: Hello, Im Rob. Welcome to 6 Minute English. Im joined today by Finn. Hello Finn. Finn: Hello Rob. Rob: In this programme were talking about exploration that's a journey to a place to
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Arcturus is a red giant star, very easy to find, the tail of the *, the tail of the big bear, you follow that and you reach the star Arcturus, so it is a way following the big bear as a bear taker which is what Arcturus means. Surprisingly Arcturus's
探索与发现2015年
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探索与发现2015年
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探索与发现2015年
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探索与发现2015年
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探索与发现2015年
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探索与发现2015年
These are just samples of amazing finds weve got from these sites. Weve got quite domestic looking tools. These types of things were probably to have been used to pierce holes in animal skin. We also found much bigger tools. This is an absolutely bri
探索与发现2015年
The supernovae that Alex photographs are hundreds of millions of light years away. The only reason that he can photograph them so distinctly is because there are such colossal explosions. And appreciating the power of a supernova's explosion has been
探索与发现2015年