标签:地球 相关文章
This is AP News Minute. A defiant Vice President Mike Pence said that President Donald Trump's administration is refusing to accept defeat on health care. He told small business owners in West Virginia that the Trump administration will end the Obama
United Nations Report Says Earths Ozone Layer Is Healing A new study says the protective layer of the Earths atmosphere is finally healing from damage by humans use of harmful chemicals. Aerosol sprays and coolants had been thinning the ozone layer s
Why Dont Marks On The Surface Of The Moon Disappear?月球表面的记号为何不会消失? In 1969 when Neil Armstrong said Thats one small step, he made a lasting impression. On the moon, that is. Marks on the surface of the moon dont disappear th
I don't want to be the next Michael Jordan, I only want to be Kobe Bryant. 我不想和别人一样,即便这个别人是乔丹。 图片1
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.
Ceratosaurus, although a pretty nasty predator, was not really suited for taking on adult size Stegosaurus or those long-necked sauropods found at the site. 角鼻龙,虽然是很凶残的掠食者,但肯定不适合攻击在石场发现的成年剑
[全屏观看] 点击右键- 另存为 可保存这个Flash影片 作品简介 :来自外星球的机器人大举入侵地球,为了维护地球的安全,绿巨人挺身而出。按SKIP ,再按START GAME 进入游戏。鼠标控制,点击鼠标
The Weekend - Aliens! (C0091) A: Oh honey, this is so romantic! I have never seen so many stars before! Its beautiful! B: See that constellation there? Thats Orion! And the very bright star? Well, its not a star since it doesnt blink. Thats actually
The first pictures of Earth taken from space showed a solid ball covered by brown and green land masses and blue-green oceans. It appeared as if the Earth had always looked that way -- and always would. Scientists now know, however, that the surface
While most of us rely on Google maps to get us where we're going, some are using the service to search for locations from thousands of years ago that we might have forgotten, like ancient pyramids. A satellitearchaeologicalresearcher from North Carol
Rachel: So Steven, we've been talking about Costa Rica and how beautiful nature is there and how important it is to preserve it. What do you do in your life to save the environment or to protect the environment? Steven: It's almost daily that I think
Futuristic Movie 'Elysium' Underscores Today's Ills 未来主义电影针砭时弊 South African filmmaker Neil Blomkamp returns with a new sci-fi film, Elysium. Like his previous futuristic drama District 9, Elysium tackles social separation in a dy
World Environment Day was established by the United Nations General Assembly in 1972 to mark the opening of the Stockholm Conference on the Human Environment. Another resolution, adopted by the General Assembly the same day, led to the creation of UN
说到环境,很多人都想做正确的事。但可持续性战略学家蕾拉阿卡罗格鲁说,比起选择纸袋来说,事情远复杂得多。蕾拉大胆地号召人们,不要再执迷于我们坚守的绿色谜题,而是拓展思维,
If you drop the ball, gravity will pull it toward the center of the earth, but will not diminish that extra eastward speed. So as the ball falls itll outrun the ground and land slightly east of the straight-down point. Edwin H. Hall, a Harvard Univer
台湾籍旅美老师今天交给我们的句子是: Conspiracy theorists claim that UFOs are visiting all the time and the reports are just being covered up, but honestly, they aren't very convincing. 阴谋论者宣称,UFO一直都有造访地球
How big a stick would you need to measure the planet? A thousand miles long? A million? How about three feet? That ought to be enough to do it, as an ancient Alexandrian man named Eratosthenes figured out. Eratosthenes was a multi-talented man who li
On our last program we discussed a simple experiment run by an Alexandrian named Eratosthenes in the third century B.C. By noting that, at the same time of day, sticks in the ground cast different-length shadows depending on whether they were in a no
Being clean is a good thing. After all, simply washing your hands regularly can help ward off flu and other contagious diseases. Maybe For the past few decades scientists have been debating the so called hygiene hypothesisthe idea that being exposed
Earths Earliest Mobile Organism Lived 2.1 Billion Years Ago Scientists have discovered the oldest fossil evidence of organism motility, or the ability of an organism to move independently. The discovery shows that development of motility began more t