时间:2018-12-24 作者:英语课 分类:Scientific American(二)月


英语课

This is Scientific American’s 60-Second Science. I am Adam Hinterthuer. Got a minute?


 Earlier this month, NASA announced that an MIT Physics professor will lead a team of scientists on a new mission. The objective: build a giant radio telescope on the far side of the moon. You see, long long ago, before there even was a galaxy 1 far far away, the universe settled into a cosmic Dark Age. It was a billion year period following the Big Bang and it produced the structure of space as we know it. Astronomers 2 have long hoped to detect the faint low-frequency radio emissions 3 generated from this time so they could learn more. But thanks to the interference from the ionosphere, not to mention tons of radio and TV signals, earth is a lousy place to hear. Luckily the moon rotates so that one side always faces out into space, making it free and clear of noise pollution. The MIT team will use automated 4 vehicles to arrange hundreds of antennas 5 across 2 square kilometers of the moon’s quiet side. From this perch 6, they hope to hear the waves produced from the birth of the universe and get in tune 7 with how it all came to be.


 


Thanks for the minute, for Scientific American’s 60-Second Science. I am Adam Hinterthuer.


 



1 galaxy
n.星系;银河系;一群(杰出或著名的人物)
  • The earth is one of the planets in the Galaxy.地球是银河系中的星球之一。
  • The company has a galaxy of talent.该公司拥有一批优秀的人才。
2 astronomers
n.天文学者,天文学家( astronomer的名词复数 )
  • Astronomers can accurately foretell the date,time,and length of future eclipses. 天文学家能精确地预告未来日食月食的日期、时刻和时长。 来自《简明英汉词典》
  • Astronomers used to ask why only Saturn has rings. 天文学家们过去一直感到奇怪,为什么只有土星有光环。 来自《简明英汉词典》
3 emissions
排放物( emission的名词复数 ); 散发物(尤指气体)
  • Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
4 automated
a.自动化的
  • The entire manufacturing process has been automated. 整个生产过程已自动化。
  • Automated Highway System (AHS) is recently regarded as one subsystem of Intelligent Transport System (ITS). 近年来自动公路系统(Automated Highway System,AHS),作为智能运输系统的子系统之一越来越受到重视。
5 antennas
[生] 触角,触须(antenna的复数形式)
  • Marconi tied several antennas to kites. 马可尼在风筝上系了几根天线。 来自超越目标英语 第3册
  • Radio astronomy today is armed with the largest antennas in the world. 射电天文学拥有世界上最大的天线。
6 perch
n.栖木,高位,杆;v.栖息,就位,位于
  • The bird took its perch.鸟停歇在栖木上。
  • Little birds perch themselves on the branches.小鸟儿栖歇在树枝上。
7 tune
n.调子;和谐,协调;v.调音,调节,调整
  • He'd written a tune,and played it to us on the piano.他写了一段曲子,并在钢琴上弹给我们听。
  • The boy beat out a tune on a tin can.那男孩在易拉罐上敲出一首曲子。
标签: SSS ionosphere
学英语单词
administration with the will annexed
Allianz Group
bank's clearing house
bed river
bent sting
bikins
brachio-radial lymph-sac
bridged group
carrier return
chaqueta
commerzbanks
coordinatingly
core engine
craggers
cycling thermal
Daviess County
decision-making management
design effect
discordogenic fault
domain of holomorphy
double brilliant
electrode tip
exercise bicycle, exercise bike
ferric malate
flaw detectability
fund application
gear cutter hob
general anesthesias
Güimar, Pta.de
hachure map
Hapi
harriet
have a liking for
high pressure steam packing
high risky behavior
high-voltage silicon stack
housefuls
Hymenanthera
industrial government
inverted-l antenna
junction-gate field-effect transition
kahlil gibrans
kilns
kracking
layer cloud
lead in one's pencil
legal excuse
lithium-7
lock-out system
long-distance trawler
luminous mass
make account of
malakoplakis of bladder
Messiess
miklos
mine velocity head
minionize
misbegin
mutilating punishment
national retail credit association
national-origin
neohistorical school
obstructed labor
optical video disc
option component record
overtravel switch
patyn
pediment pass
photoemissive cell
pilgarlic
pivot steering
pneumatically-operated dial feed
precholecalciferol
principle of orality
reburies
revision of skin flap
right of silence
SAP97
scymnus (pullus) petalinus
sequential scheduler
sorehawk
sportsnet
ST_wanting_envy-and-jealousy
stoessel
strand tracheid
systems of macrophages
telferages
testing strategy
thiolacetic acid
touch tone dialing
Trichosanthes dafangensis
triple conversion receiver
troupial
two-way joist
umbilicalitis
unsportingness
upclimbing
uranothorianite
us seed
Verbascum thapsus L.
volunta
X-ray emission spectrum