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
-ola
affectionated
analog-to-digital converter (adc)
any day
apathized
archdoor
art music
asexual species
basometachromophil
Belgentier
blister fly
bluebook
bring him down
bromethol
bubbling of gas through liquid
buenas
bull-chain
cargo bikes
cell signaling
charkhi dadri
chromiumcopper
cryotherapy of hemorrhoids
dark respiration
datametricss
Department of Overseas Trade
departures from orthogonality
disenchantresses
drug distribution system
economic advertisement
electromagnetic oil pressure indicator
every now and every once in a while
exudation deposit
familial polyposis coli
fine shellac
flexible network
four-stroke
ground course converter
half round saw
high-speed loop
His Royal Highness
hog Latin
hog-rubbers
Hostapon process
Högsäter
innominate glands
Isofluranum
JHWH
josefov
judg(e)ment reserved
largo
leandre
left upper quadrant
leproma
lesbionic
leukomatous
linear spectral space
linene
medical aesthetic outlook
mental testings
metallibure
millimeter wave band power meter
monoepoxide
monotone regression
neutron source holder
nuclei fibrosus linguae
off-the-road
oleity
ordinary income
overpressurisation
Paleozoic crudes
palmarosa
parasitifier
pegmatitic stage
plate feed
polymeric longitudinal vein
polynomial interpolation inequality
polytetramethylene oxide
preset instruction
principal linkage
prisin
pussygirls
quinceworts
retinacs
Ryūgasaki
screen play
Seoulites
service term
set of equation
side-arm
silver-hilted
simulation equation
sinus rhomboidalis
siphon wick feed oiler
size matters
spirillar dysentery
spirit level
superior nasal bone
swash plate
transition reactor
untempested
Vouraïkos Potamos