单词:earth's outer-core
单词:earth's outer-core 相关文章
Seeking Our Outer Space Home One hundred years ago, walking on the moon was only a dream -- it is almost impossible to imagine what might happen in the next 1)millennium. We know that one day we will
Grandfathers eyebrows raised in surprise as he watched his grandchildren and Rachel Cunningham climb onto the stage. They stood beside the podium. I hope this interruption is important, James Alden said. Its about Marks paper, Henry said. Mark sat up
NASA Spacecraft, Dawn, Close to Reaching a 'Dwarf Planet' 美国黎明号航天器,接近矮行星 An American spacecraft is moving closer to a dwarf planet called Ceres. The American space agencys Dawn spacecraft is set to reach the planet-like obje
[00:06.92]Lesson 8 [00:08.93]1.Look,read and answer. [00:13.73]China's First Astronaut中国的第一个宇航员 [00:17.35]On October 15,2003, [00:22.14]Shenzhou V lifted off at 9:00 in the morning. [00:26.12]早上九点,神州五号飞船发射了
在火星上骑行是一种怎样的体验,一定比在伦敦上下班高峰期开车还费劲吧...... Neil: Hello and welcome to 6 Minute English from BBC Learning English, I'm Neil and with me today is Chris. Chris: Hello there. Neil: Now Chris,
…cold conditions that earth has to offer. Professor Freeman believes these rugged microorganisms are probably capable of surviving on Mars. Mars is certainly our best bet for finding life in the inn
A space ambassador(大使,代表) could be appointed by the United Nations to act as the first point of contact for aliens trying to communicate with Earth. Mazlan Othman, a Malaysian astrophysicist(天体物理学家), is set to be tasked with c
This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Thars gold in them thar hillsand we may have meteorites to thank. Because it appears that a rain of meteors nearly 4 billion years ago peppered the Earths
Mantle 地幔 We are living on the surface of the Earth. 我们生活在地球表面。 So, what is inside the Earth? 那么,地球内部是什么? There is a mantle under the surface of the Earth. 地球表面以下是地幔。 The mantle takes
SCIENCE IN THE NEWS - Space Junk Threatens Earths Orbital Environment JIM TEDDER: This is SCIENCE IN THE NEWS, in VOA Special English. Im Jim Tedder. KATHERINE COLE: And Im Katherine Cole. Today, we tell about an ever increasing number of objects in
AS IT IS 2014-07-22 NASA to Discover Life in Outer Space 美国国家航空航天局在外太空发现生命 NASA scientists say they are closer than ever to finding life beyond Earth. Several leading NASA scientists spoke to a gathering July 14th at
Scientists Work to Understand Earth's Magnetic Field 科学家们努力了解地球磁场 Most of us rarely think about the earth's magnetic field. We might know that it helps guide birds as they travel and keeps our compasses pointing north. But, th
NASA Paints Pluto Wild With Color NASA公布冥王星表面色彩 NASA, the U.S. agency that explores outer space, calls this image Psychedelic Pluto. Pluto is the furthest planet in our solar system. The word psychedelic means bright, edgy colors, a
The loss of the magnetic field has a catastrophic impact on the planet's evolution. Mars becomes the red planet we see today. If earths magnetic protection continues to fade, would it suffer the same fate? If it vanishes completely, the planet might
Easily confused by this idea, there has a big thawed iron inner core, so that I think it's just the bar magnet, just permanent magnet frozen in nad, and that's where causes all the magnetic field. But it's too hot inside the Earth, that can't happen
As the vast sphere reaches / maximum speed, something incredible happens. Huge lines of magnetism arc in and out of the model core. Well, we can't see the magnetic field coming out of the experiment, we can measure them, we can put many different mag
Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is
A huge meteorite crashed into the Atlantic Ocean. Babies who were sound asleep in Asia heard the impact. The meteorite went through the ocean bottom. It created a hole deep in the Earth. All the seawater from the Atlantic started rushing into the hol
So all that can be said is that at some slightly indeterminate point as we head toward the center of Earth we leave the asthenosphere and plunge into pure mantle. 因此,我们只能说,在前往地球中心的过程中,我们会在某个不大确