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《时间旅行者的妻子》是一个新颖的故事,它涉及到三个层面的连动:引人入胜的科幻概念、栩栩如生的人物刻画,以及感人至深的爱情。全书交织贯穿了亨利和克莱尔不同角度的视野和叙述,传神地表达出克莱尔那种总是被丢下后的思念,那种不寻常的生活方式,以及她对亨利超乎
AS IT IS 2013-05-03 Space Flights Can Harm Astronauts' Health Hello, again. Im Jim Tedder in Washington. Thank you for spending some time with VOA. Today, we have two stories from Africa. There is disturbing news about migrants in the Horn of Africa.
Isaac Newton: One of the Worlds Greatest Scientists SHIRLEY GRIFFITH:This is Shirley Griffith. STEVE EMBER: And this is Steve Ember with the VOA Special English program, Explorations. Today we tell about one of the worlds greatest scientists, Isaac N
From the depths of space, an asteroid hurtles toward Earth. [Well, our general vicinity.] But this is no ordinary hunk of galactic debris. Because the body of this asteroid seems to defy gravity. Its bound by forces never observed on this scale in sp
Grasshopper learns physics 蚱蜢学物理 Celia was a bright student except when it came to physics. She was better at drawing graphs. She was skilled at graphics because she was majoring in graphic design. Her classmates named her grasshopper because s
EXPLORATIONS - On the Shoulders of Giants: Isaac Newton and Modern Science SHIRLEY GRIFFITH: This is Shirley Griffith. STEVE EMBER: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell about one of the world's grea
Study: Immune System Weakens in Space During the final flight of the US space shuttle Atlantis in the summer of 2011, one of the most important pieces of scientific cargo on board was a medical experiment designed to test how the human immune system
RACHEL MARTIN, HOST: We're in Dallas, Texas, today to mark the first primary in the country ahead of the fall midterm elections. Democrats are feeling confident. And if you want to know how seriously Republicans are taking that threat, Governor Greg
This is Scientific Americans 60-Second Science. I am Synthia Graber. Got a minute? Wander where and when the next major river flood would had, just look up to the satellites. Conventional estimates a river volumes come from rain fall of course and fr
Time spent in zero G changes the body: Astronauts come home with bone loss and muscle weakness. But what happens in their heads? To find out, researchers examined MRIs of astronauts brains taken before and after flight. They looked at 12 astronauts w
In general when we refer to a theory we mean something that's not proven yet. In science it's different, as Yael and Don discuss in this Moment of Science. Y: Today, on A Moment of Science, we clear up the difference between a scientific theory and a
Don: It's time once again for one of those Moments of Science that we like to call Never Thought to Ask.Our never thought to ask question for the day is: Why is the earth round? Ya?l: Why is the earth round? I never thought to ask that. D: Of course
Weknew from the radar measurements where Golevka was within a few tens of metres.And yet it was actually 12 or 15 kilometres away from where it was predicted tobe without Yarkovsky effect. So these very precise radar observations allowedus to see the
Actually, Arcturus is an omen of something far worse than the bad weather, a portended drama more intense than any of what you could imagine. When our own sun eventually becomes a red giant in 5 billion years time, it will turn into a destroyer rathe
Thats why what we physicists called pressure. This pressure is created as the particles jostle for position. Its a principle of Quantum Mechanics and when it was applying to stars, the lives of dead white dwarfs suddenly made sense. What stopped them
And with his colleagues, he did the calculations to prove it. The key was the conditions created in the final stages about massive stars fighting against its gravity. These stars are so massive and hot that they can go through a whole series of nucle
Space thriller Gravity won 11 BAFTA nominations on Wednesday, putting it just ahead of the pack at Britain's top film honours, while 12 Years a Slave and American Hustle were in the running in 10 categories. British actors Helen McCrory and Luke Evan
Dont Try This at Home! Heres a hypothetical scenario that is to remain hypothetical. In other words, dont do this. Okay. Youre cruising along a desert highway in your souped-up roadster, leaving the roadrunners in the dust. Unfortunately, you are not
Before Satellite Images, Howd We Know Earth Turned Every 24 Hrs? 在我们有卫星行片以前,我们是如何知道地球一天二十四小时都在转动呢?去听听科学家的说法吧。 The earth turns on its axis every 24 hours or so wer
台湾籍旅美老师今天交给我们的句子是: In fact, a black hole with the diameter of a nickel would be slightly more massive than the Earth. It would have a surface gravity a billion billion times greater than our planet currently does. 事