时间:2018-12-24 作者:英语课 分类:Scientific American(十)月


英语课

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


If there's a line in Vegas on the odds 1 of life on another planet, now might be a good time to place a wager 2. A study in the journal Science examined 166 Sun-sized stars and found nearly one in four had rocky, earth-sized planets in close, earth-like orbits. The finding might chart a new course for extrasolar planet research.


Most planet-formation models predict a “planet desert” within one astronomical 3 unit (or the average distance from the Earth to the Sun) of a host star. Gaseous 4 planets like Jupiter or Saturn 5, which form much farther away, on the cold side of what’s called the “ice line,” are thought to be more common.


But a team of researchers at Hawaii's Keck observatory 6 cast their eyes on stars similar to our Sun. Twenty-three percent of those stars had small, rocky planets orbiting right in the range where the predicted “planet desert” should be.


The researchers say their discovery calls for substantial revisions to current astronomical models. It also makes the possibility of life on some similar planet spinning a similar, habitable distance from its sun seem like a better bet.


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

 



1 odds
n.让步,机率,可能性,比率;胜败优劣之别
  • The odds are 5 to 1 that she will win.她获胜的机会是五比一。
  • Do you know the odds of winning the lottery once?你知道赢得一次彩票的几率多大吗?
2 wager
n.赌注;vt.押注,打赌
  • They laid a wager on the result of the race.他们以竞赛的结果打赌。
  • I made a wager that our team would win.我打赌我们的队会赢。
3 astronomical
adj.天文学的,(数字)极大的
  • He was an expert on ancient Chinese astronomical literature.他是研究中国古代天文学文献的专家。
  • Houses in the village are selling for astronomical prices.乡村的房价正在飙升。
4 gaseous
adj.气体的,气态的
  • Air whether in the gaseous or liquid state is a fluid.空气,无论是气态的或是液态的,都是一种流体。
  • Freon exists both in liquid and gaseous states.氟利昂有液态和气态两种形态。
5 Saturn
n.农神,土星
  • 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。
  • These comparisons suggested that Saturn is made of lighter materials.这些比较告诉我们,土星由较轻的物质构成。
6 observatory
n.天文台,气象台,瞭望台,观测台
  • Guy's house was close to the observatory.盖伊的房子离天文台很近。
  • Officials from Greenwich Observatory have the clock checked twice a day.格林威治天文台的职员们每天对大钟检查两次。
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allowable voltage
alternate direction
alternative dispute resolution (adr)
anaglyph process
angina tonsillaris
antithrombin III
Ascii terminal.
atactic abasias
badword
baiomys tayloris
Balikpapan
basic craft
batesme
beam balance type
Bettendorff's reagent
bitter cress
blue brick
bndes
buse
calm water speed
coded light identification
college boys
colorway
combination circuit
computer clearing
dies fasti
diesel-oil electric generator wagon
Dipolog
double-checked
energy attenuation
fiber dispersion
frictional divergence
glaucothoe
glycerinate
gryllacridids
halfwaiest
Hamman's disease
harvestable
hemlock parsley
honorable discharge
hot-forging
in-plane vibration
initiating
injection timing device
interactive routing
Jaffna Dist.
keep one's own advice
lancejack
locking torque
Lónafjördhur
Mandāwar
memory address counter
mixed delay
motivation analysis algorithm
mouldjoint
neckar rivers
non manufacturing costs
numerical approximation and analysis
operational path
outwait
paidology
particular kind of capitalist economy
payin
plus fours
poor conductor of heat
Popov's method
power law for wind shear
qualify a statement
recursion theorem
relative centrifugal force
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repellent net
rofelodine
sadalla
say to
Seboeis L.
shadow volume
shore type
signores
silt loam
single density diskette
social stability
spongiest
spoon back
spori-
standard explicit method
swim fin
tail-tie
Tawaramoto
Temserin
thousand corn weight
tip of the spike
Tobol'sk
unpressurised
unseductive
user pay
vadium vivium
verveine
voice imprint
Westco pump
wobble wheel roller
yentz