标签：已知的宇宙 相关文章
情景对话： Does he really live up there? I took basic astronomy and there was no mention of life, or children, on any other planets. Unless it's true that he came from a star, but that seems improbable. 知识点讲解： There was no mention of
2018年VOA慢速英语(一)月
Now, its the question that has gripped generations. Is there anyone out there? Well, there is a plan to send a message to a planet just one trillion miles away from us. A project has been launched to collect messages from everyone. The most popular o
英语时差8，16
This cluster the Pleiades mentioned by Homer in the Odyssey, they appear in the Bible and in some of the goddess by the Aztecs and the Maya, but the interesting thing is that the Pleiades are so young, that early dinosaur never saw them, because at t
探索与发现2015年
Imagine that you spent your whole life at a single house.Each day at the same hour you entered an artificially-lit room,undressed and took up the same position in front of a motion picture camera.It photographed one frame of you per day,every day of
英语名著名段背诵精华
斯蒂芬.沃尔夫勒姆，Mathematica的创始人，谈论了他试图通过搜索、处理及操作各种信息从而计算所有知识的构想。他的新一代搜索引擎，Wolfram Alpha，致力于对宇宙根本的物理问题进行建模和解
TED公开课:百字不如一数字
Time again for our Website of the Week, when we showcase interesting and innovative online destinations. If you've ever been to a planetarium, you know what it's like to look at stars and planets while an expert guide explains what you're looking at.
VOA标准英语2010年(四)月
Scientists Looking at Coldest Objects in Universe 寻找宇宙中最冷的物体 Astronomers have a new powerful tool for looking deep into space while trying to better understand the origins of the universe. It is a new telescope that will look for
VOA标准英语2014年(六月)
We've transported the earth 3 billion years into the future. The sky is dominated by a massive galaxy called Andromeda. The view looks peaceful enough. But whats about to happen is one of the greatest calamities in the universe. The clues lie in thes
自然百科2011年
So what we are looking at is a region about 200 million light years across which is actually just a small part of our really big simulation that we call Bolshoi which is Russian for big. Everything that you see here is actually completely invisible.
自然百科2011年
What happens is that, first the dark matter forms the structure, the ordinary matter then follows the dark matter. The ordinary matter is hydrogen and helium at this stage. And the hydrogen and helium fall/ to the center of the dark matter halos that
自然百科2011年
But if watching matter tumble over the edge of a black hole might now be possible, it is only because of the efforts of a generation of astronomers to wrestle these dark dragons of the cosmos into the realms of scientific reality. As is often the cas
探索与发现2013年
For the residents of the Russian city of Chelyabinsk, the morning of Friday, February 15, 2013 began like any other. As they set off to work in what has become a craze throughout Russia, many recorded their journeys, but these cameras usually used fo
探索与发现2014年
To walkhere on Earth, to be alive, it thanks to a long chain of cause and effect writtendeep into the structure of the universe. A primordial process so long, and soancient that on the scale of a human life it seems almost incomprehensible. One of th
探索与发现2013年
And are we alone?. 二是我们是否唯一。 Those 2 deep questions drive us all through our whole lives. 这两个深刻问题伴随着我们的整个生命。 And to answer those 2 questions. 要回答这两个问题。 we have to continue to exp
公众人物毕业演讲
But, as powerful as Rome may have been, they couldn't change the rules of the universe, and neither of these calendars add up to anywhere close to the time it takes us to orbit the sun. After a few years, the seasons are out of whack with the months,
留美老师带你每日说英文
The Lowest Note in the Universe 宇宙中的最低音 It's coming from a black hole in the Perseus Cluster, about two hundred fifty million light years away. A black hole？And outer space？That makes sound? Whats happening out there is that interga
英语听力文摘 English Digest
The James Webb telescope is being prepped for launch in 2021 and it will change the way that NASA views the universe. James Webb is designed specifically to look into the infrared, and this is an area of the spectrum where we have looked before, but
VOA标准英语2019年(一月)
台湾籍旅美老师今天交给我们的句子是： Literature is the greatest reality simulator, a machine that puts you through infinitely more situations than you could ever directly witness. 文学是最棒的现实仿真器，让你体验各种
留美老师带你每日说英文
Galileo, however, used one of the earliest telescopes to look at Jupiter. He noticed that Jupiter has moons going around it. Apparently everything in the cosmos didnt have to go around the earth! Perhaps, Galileo said, it just looks like everything m
英语时差8，16
Better Than Barney 某天夜里，你一觉醒来发现电视机忘了关，节目却已播完，电视屏幕上嘶嘶地闪着雪花，也许你不会想到，再普通不过的雪花噪音竟包含来自137亿年前宇宙大爆炸的遗物微波背景
英语听力文摘 English Digest