重力槽形不稳定性

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

发表于:2019-01-08 / 阅读(76) / 评论(0) 分类 Scientific American(七)月

ATutorWhoTootedaFlute Atutorwhotootedaflutetriedtotutortwotooterstotoot.Saidthetwototheirtutor,Isithardertotootortotutortwotooterstotoot ? 一个吹笛的导师尝试教两个吹笛者吹笛。那两个学吹笛的问导师 : 「吹笛难 , 还是教

发表于:2019-01-10 / 阅读(60) / 评论(0) 分类 Wee Sing In The Car

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

发表于:2019-01-12 / 阅读(64) / 评论(0) 分类 2016年VOA慢速英语(二)月

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

发表于:2019-01-20 / 阅读(89) / 评论(0) 分类 2017年Scientific American(三)月

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

发表于:2019-01-23 / 阅读(50) / 评论(0) 分类 探索与发现2013年

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

发表于:2019-01-29 / 阅读(48) / 评论(0) 分类 万物简史

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

发表于:2019-01-29 / 阅读(62) / 评论(0) 分类 万物简史

By Mil Arcega Washington 03 December 2007 A panel of oil experts, including an ambassador from a producing nation, warned this week growing militancy in the Middle East poses a threat to world oil markets. The forum, hosted by a conservative think ta

发表于:2019-02-02 / 阅读(73) / 评论(0) 分类 VOA常速英语2007年(十二月)

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

发表于:2019-02-02 / 阅读(101) / 评论(0) 分类 英语新闻

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

发表于:2019-02-02 / 阅读(98) / 评论(0) 分类 英语新闻

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

发表于:2019-02-02 / 阅读(58) / 评论(0) 分类 英语新闻

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

发表于:2019-02-03 / 阅读(73) / 评论(0) 分类 英语新闻

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

发表于:2019-02-06 / 阅读(87) / 评论(0) 分类 英语新闻

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

发表于:2019-02-16 / 阅读(88) / 评论(0) 分类 经济学人科技系列

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

发表于:2019-02-17 / 阅读(70) / 评论(0) 分类 经济学人综合

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

发表于:2019-02-17 / 阅读(55) / 评论(0) 分类 GRE英语

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

发表于:2019-02-17 / 阅读(158) / 评论(0) 分类 GRE英语

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

发表于:2019-02-21 / 阅读(94) / 评论(0) 分类 2016CRI中国国际广播电台

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

发表于:2019-02-22 / 阅读(61) / 评论(0) 分类 留美老师带你每日说英文

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

发表于:2019-02-25 / 阅读(82) / 评论(0) 分类 GRE英语
学英语单词
altar-tomb
aluminium alloy sliding or side-hung casement type window
aluminium base grease
annual basis
Arenshausen
asymptoted
battle line
bicephalic femoral muscle
bowen's series
bran dressing
broken-line graph
buble
Bφrgefjell Nasjonalpark
Camellia nitidissima
campaign
check-in
Cheddarhead
Chenopodium rubrum
chi-pao
chibbaro
chief engineer's log
chlorhydric
commission merchant
Compositing Change
confyne
corpora ossis sphenoidalis
corrodibilities
deicing device
delphinium delavayi franch.
dominican mahoganies
easy street,Easy Street
electronic flash generator
eptatretus chinensis
etape
f.hepatica
fast ionic conductor
filtration membrane
genus Genipa
gibberellic acid
government of men
gross pay
Habry
hadly regime
heavy-ion linac
hepatopancreatic duct
hexagonal belt
hookup
hypapophysis
ingens
inline type
intermission
Kechua
largemouthed bass
laser glazing method
Lewis L.
line of profile peaks
longitudinal play
Machupicchu
magnetic link
Microsoft API
milestone
Molisch
monographic
mosaic crystals
moving die
octatonic
officer of the day
one-pip area
oscillatory acceleration
owego
Palouse Falls
panspermists
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peel-off time
phase control apparatus
pockies
polyphyllia talpina
preagitation
quadrilles
radar screens
resolver rotor
rhodoflavin
ritter-oleson(technique)
roller spot-and-seam welding machine
rossington
seleniferous plant (selenophile)
selfoc lenses
senior citizen
shellac bonded wheel
sinoradimella virgata
squab pies
tax-shelter
this matter
todaro
tonsillectomy by guillotine
tropopause invension
Urenui
way-leet
white-picket-fence
wire-grass
woods hole oceanographic institution
X test