胡敏读故事记单词托福词汇109

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

SSS 2011-07-13

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? You could think of it as the real dancing with the stars. Two white dwarf stars have been found twirling around each other to make a complete orbit in less than every 13

VOA慢速英语2016 引力波存在证明爱因斯坦是正确的

Gravitational Waves Detected, Einstein Is Right 引力波存在证明爱因斯坦是正确的 尽管花费了100年时间，最终科学家还是证明了爱因斯坦的理论是正确的，引力波确实存在 The waves were predicted as part of Ei

VOA标准英语2011--NASA's GRAIL to Map the Moon

NASA's GRAIL to Map the Moon The U.S. space agency NASA is preparing to launch a new, nearly half-billion dollar lunar mission that will enable scientists to better understand the moon's gravitational field and the lunar interior, from crust to core.

科学美国人60秒 SSS How to Find Loooong Gravitational Waves

In 2016 the Laser Interferometer Gravitational-Wave Observatory, LIGO, made the first accepted detection of gravitational waves. So any time you move a mass it produces a gravitational waveso black holes, like the ones LIGO detected, these are stella

英语听力：2013-09-22 地平线：黑洞吞噬—2

High above your head, in the centre of our Milky Way Galaxy, a violent drama is about to unfold. Our super-massive black hole is getting ready to have dinner. As a gas cloud three times the size of the Earth, its caught in its gravitational hold. Acr

万物简史 第77期:事物的测定(25)

When assembled, Michell's apparatus looked like nothing so much as an eighteenth-century version of a Nautilus weight-training machine. It incorporated weights, counterweights, pendulums, shafts, and torsion wires. 装配完毕以后，米歇尔的仪器

万物简史(MP3+中英字幕) 第61期:事物的测定(8)

At Principia's heart were Newton's three laws of motion (which state, very baldly, that a thing moves in the direction in which it is pushed; that it will keep moving in a straight line until some other force acts to slow or deflect it; and that ever

科学家宣布再次探测到引力波

Four months after the historic first-ever detection of gravitational waves, scientists said they have directly detected another gravitational wave washing over the Earth. 在引力波历史性的首次检测到四个月之后，科学家们近日表示

中国布局引力波探测

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

科学家发现引力波 印证爱因斯坦预言

David Reitze, executive director of the U.S.-based Laser Interferometer Gravitational-Wave Observatory, also known as LIGO, made the announcement in Washington D.C. Ladies and gentlemen, we have detected gravitational waves, we did it! The gravitatio

科学家发现宇宙膨胀的证据

科学家发现宇宙膨胀的证据 WASHINGTON, March 17 (Xinhua) -- U.S. astronomers announced Monday they have captured the first images of gravitational waves, or ripples in space-time described as the first tremors of the Big Bang in which the u

中国建造世界最高重力波望远镜

They were proposed almost exactly 100 years ago by Albert Einstein based on his theory of general relativity but it was only in February 2016 that scientists proved the existence of gravitational waves. And now China is starting work on the worlds hi

经济学人:天体物理 尘归尘土归土

Astrophysics 天体物理 Dust to dust 尘归尘，土归土 A dramatic recent discovery in physics is looking rather dodgy 近期，物理学中的一项戏剧性发现看上出非常模糊 IN MARCH Chao-Lin Kuo, an astrophysicist at Stanford Univer

经济学人512:宇宙学 揭秘宇宙的起源

Leaders 社论 Cosmology 宇宙学 Man suddenly sees the start of the universe 揭秘宇宙的起源 The quest to understand reality takes a great leap backwards 科学新突破探索宇宙诞生之初的真相 IN THE beginning was the word and the w

在阅读中把握GRE词汇含义方法技巧

在阅读中把握GRE词汇含义方法技巧 GRE文章是论证性文字，不是说明性文字，也不是叙述性文字。这种以论证为特点的文字，及于GRE阅读文章的各个层面：篇章段落句子单词。篇章由多个论点组

GRE阅读中的专有名词都有什么

首先我必须要知道，一篇文章中不认识的单词占托福阅读词汇总量的比例只要控制在8%以内，是绝对不会影响到我们对全文任何观点的理解的。基于这一点，我们大家大可不必因为遇到了几个我

2016年CRI China's Unveils ＂Taiji＂ Gravitational Wave Plan

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

留美老师带你每日说英文 第906期:大气压力和高度的关系

As altitude increases, atmospheric pressure decreases. This is due to Earth's gravitational pull on the air molecules in the atmosphere. The closer to the Earth's surface the stronger the force exerted on these molecules. 随着高度上升，大气压

GRE阅读中遇到陌生词汇要沉着应对

首先要说的是，在阅读教学的研究当中，语言学家们发现，一篇文章中不认识的单词占全文词汇总量的比例只要控制在8%以内，是绝对不会影响到我们对全文任何观点的理解的。基于这一点，我