重力势阱

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(160) / 评论(0) 分类 Scientific American(七)月

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(145) / 评论(0) 分类 2016年VOA慢速英语(二)月

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.

发表于:2019-01-13 / 阅读(155) / 评论(0) 分类 VOA标准英语2011年(九月)

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(175) / 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(117) / 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(122) / 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(194) / 评论(0) 分类 万物简史

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(177) / 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(199) / 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(122) / 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(149) / 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(176) / 评论(0) 分类 英语新闻

Thanks Michael. The incoming deputy prime minister Barnaby Joyce has promised to be a champion of regional Australia. Mr. Joyce will be sworn into the deputy's position after being elected unopposed as the leader of nationals. Senator Fiona Nash was

发表于:2019-02-14 / 阅读(136) / 评论(0) 分类 澳洲ABC新闻快递2016年

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(176) / 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(156) / 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(135) / 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(242) / 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(178) / 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(144) / 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(158) / 评论(0) 分类 GRE英语
学英语单词
acorn-nut
adenocystosarcoma
adjustable socket wrench
amber mutant
ash-laden
astrophotographic
automatic line reconnect
average-volume
aviation specification isopropyl nitrate (avpin) (monofuel)
bioengineered microbial threat
Bir Ghbalou
brewer's grain pellets
brush shade
bum buddies
busi-ness
busy back tone
calibration kits
cannabichromene
capital of Botswana
compound ganglion
control valve bracket
cultural of honor
cylinder jacket
dinitrogen tetraoxide
discoursed
economic commission for africas
euploea eunice botelianus
exhaust head
explode outward
feculent
fellow creature
foil arch
geodesic system
gimbal retardation
Gounou-Gaya
Grundschule
hidden incision
high speed repetitive operation
hook on instrument
horn button
hydroiodide
impact time
inflation bottle
internal promoter
isaphenin
istrias
langlume
locked-rotor troque
lower motor neuron
mandritta
mark of indirect interpretation
marshy meadow
meningina
micrografting
military item
multiple bearing type guide
musculi constrictor isthmi faucium
myosin heavy chain gene
non riemannian geometry
nostel
o.c.t.u.
original speed
ouric
pain-relievers
palpability
para-hydroxybenzoic acid
partes iridica retinae
piper aurantiacum wall.
placer workings
poetizes
porcelain oblong fuse box
pore one's eyes out
postdate fetus
propulsion motor exciter
rages
range error detector
rare old
read-protected
redeemer
remasculinized
self-cleaaing
serious patient
set oneself against
socket
st. petersburg (leningrad)
states of the art
step-type recording wave gauge
strophocheilids
strowski
studio display facility
tanisha
tax reserve
terminal plate
triple smoothing
Trisegmentectomy
true coincidences
unregulated reaches of river
valveman
wage standard
Wedau
wet cutting
yellow-roots