单词:diagnostic surface horizon
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Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.
These discoveries raised the stakes. Here was a planet similar to our own. Mars might not have cities or civilizations. But it could be home to other smaller life forms like microbes. Chris McKay is N
I think it is exciting. Because it would imply that if life arose independently on Mars. The implication is that life is pervasive throughout the universe. This is why Mars has so obsessed scientists.
But even if there had been water, life doesn't start overnight. Even a simple microbe is the product of complex chemical systems that take millions of years to evolve. Had the water lasted long enough
William Boynton is professor of planetary sciences at the University of Arizona. And he's dedicated his life to looking for water on Mars. The link between life and water is very strong. Even here in
When it comes to the stock market, are you smarter than a first grader? Youd better wait a few minutes before you answer. Im Carl Azuz. This is CNN Student News. Authorities around the Gulf of Mexico are in a race against time. They are trying to con
This is Scientific Americans 60 seconds science, I am , got a mimute? probiotics are so hot, bacterial that we can consume in food like yoghurt, miso and pickles can help us got my grow bands, they are happy and healthy.Now there might be another rol
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
How Far Away Is The Horizon? 地平线有多远? Heres a neat question you may have never thought to ask. How far away is the horizon? 你可能从未思考过这个简单的问题,地平线有多远? Flat Earth 地球是平的 Think about it.
Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t
But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa
The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee
One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'
90 消化系统摄影仪通过政府审批 SCIENCE REPORT ?September 5, 2001: Digestive System CameraBy George Grow (Start at 1'01
THE FOUR DIAGNOSTIC METHODS-THE METHODS TO OBSERVE AND DIAGNOSE DISEASES四诊诊察疾病的方法 The four diagnostic methods, namelv inspection, auscultation and olfaction, inquiry, and pulse-taking and palpation, refer to the four basic procedure
This idea is nicely captured by this quote: Things without all remedy should be without regard; what's done is done. 有句话很好地表达了这个观点:放开无法挽回的事情;泼出去水收不回来。 And it seems like kind of an admi
WHO releases new guidelines for treatment of malaria, making possible to rapidly diagnose malaria in even poorest settings Lisa Schlein | Geneva 09 March 2010 The World Health Organization is releasing new guidelines for the treatment of malaria. It