[天] 土星大气环流

The northeast just had its first big snow of the season. Meanwhile, on Titan, it was foggy. That weather report brought to you by researchers publishing in the journal Astrophysical Journal Letters. The scientists found that Titan, Saturns largest mo

发表于:2018-12-02 / 阅读(96) / 评论(0) 分类 Scientific American(十二)月

By Jim Teeple First there was Charley, then Frances, and now Ivan; three major hurricanes in a month that have destroyed lives, homes and property across the Caribbean and the southeastern United Stat

发表于:2018-12-08 / 阅读(67) / 评论(0) 分类 VOA2004(下)--新闻盘点

Lee Witt (R) and BP PLC CEO of Gulf Coast Restoration Organization Bob Dudley at a news conference to announce Witt's hiring as advisor to BP's Deepwater Horizon oil spill response in Biloxi, Miss., 30 Jul 2010 Both U.S. government and BP officials o

发表于:2018-12-16 / 阅读(123) / 评论(0) 分类 VOA标准英语2010年(七)月

DAVID GREENE, HOST: This summer, a record-setting dead zone has appeared in the Gulf of Mexico. This is a zone where water does not have enough oxygen for fish to survive. One major cause of this is pollution from farms. And this has provoked a debat

发表于:2018-12-17 / 阅读(51) / 评论(0) 分类 2017年NPR美国国家公共电台8月

The Arctic's Anti-Snowball Snowball Effect 北极的反雪球效应 Last Christmas, Santa Claus must have been loading his sleigh in a t-shirt and shorts. Temperatures at the North Pole crept up toward the freezing point when they should have been mi

发表于:2018-12-24 / 阅读(60) / 评论(0) 分类 2017年科学美国人(七)月

Fog Found on Saturn's Moon Titan A study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but made out of methane. Karen Hopkin reports The northeast just had its first big snow of th

发表于:2019-01-02 / 阅读(92) / 评论(0) 分类 60秒科学

SCIENCE IN THE NEWS - Severe Ocean Storms: Behind Nature's Power By Caty Weaver Broadcast: Tuesday, September 27, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob D

发表于:2019-01-02 / 阅读(69) / 评论(0) 分类 科技之光

By Jessica Berman The U.S. space agency has released the first close-up pictures of Titan, Saturn's secretive, giant moon. Photos from the international Cassini spacecraft show the orbiting object shr

发表于:2019-01-03 / 阅读(72) / 评论(0) 分类 VOA2004(下)--健康科技

By David McAlary The U.S. Cassini spacecraft orbiting Saturn has found evidence that the giant planet's dazzling rings are decaying and may eventually be gone. And the rings are dirtier than thought,

发表于:2019-01-03 / 阅读(97) / 评论(0) 分类 VOA2004(下)--健康科技

AS IT IS 2014-07-22 NASA to Discover Life in Outer Space 美国国家航空航天局在外太空发现生命 NASA scientists say they are closer than ever to finding life beyond Earth. Several leading NASA scientists spoke to a gathering July 14th at

发表于:2019-01-12 / 阅读(52) / 评论(0) 分类 2014年VOA慢速英语(七)月

KELLY MCEVERS, HOST: The Arctic is a huge icy cap on the planet, and it acts like a global air conditioner. But the air conditioner is breaking down. Today, scientists issued a grim report card on the Arctic. They say the pole continues to warm at an

发表于:2019-01-16 / 阅读(92) / 评论(0) 分类 2017年NPR美国国家公共电台12月

If we could flip a switch and just turn off the Earth's magnetic field, it will take about 15,000 years to disappear, based on the rate of decay of the field that we've seen over the last 150 years. It's currently decaying at a rate that would see an

发表于:2019-01-22 / 阅读(77) / 评论(0) 分类 自然百科2011年

Saturns apparently peaceful appearance is due to a haze of high level ammonia in the upper atmosphere, by looking deep into Saturn in the infrared, using the planets own internal heat as a light source, Cassini has revealed the planets true nature. T

发表于:2019-01-22 / 阅读(59) / 评论(0) 分类 自然百科2012年

Earth's Fried Far-Future Postponed A study in the Proceedings of the National Academy of Sciences adds at least a billion years to the already far-future estimate of when the sun will make Earth too hot to handle. Karen Hopkin reports. [The followin

发表于:2019-01-30 / 阅读(109) / 评论(0) 分类 60秒科学

Huygens Spacecraft Arrives at Saturn Moon “慧更斯”号抵达土星卫星 After a seven-year ride to Saturn on the U.S. Cassini spacecraft, the European Space Agency's Huygens probe is finally at

发表于:2019-01-31 / 阅读(101) / 评论(0) 分类 VOA2005(上)--环境科学探索

By Paul Sisco Washington 09 April 2008 Leatherback turtles fascinate ocean researchers. The largest of sea turtles roams the world's oceans, nesting and feeding in coastal regions. Scientists say leathernecks have been doing so for at least 65 millio

发表于:2019-02-02 / 阅读(65) / 评论(0) 分类 VOA常速英语2008年(四月)

By Greg Flakus Fort Collins, Colorado 10 July 2007 This past weekend concerts took place around the world to focus attention on the problem of global warming, which former U.S. Vice President Al Gore says is the greatest single threat facing humankin

发表于:2019-02-05 / 阅读(116) / 评论(0) 分类 2007年VOA标准英语(七月)

By Nico Colombant Dakar 18 June 2007 West Africa is increasingly becoming a transit point -- as well as a stopping point -- for illicit drugs. So far, local governments have proven incapable to combat the trend. VOA's Nico Colombant reports from our

发表于:2019-02-06 / 阅读(132) / 评论(0) 分类 2007年VOA标准英语(六月)

SCOTT SIMON, HOST: Summer's here, of course, that means fresh peaches. When it comes to peaches, lots of people think of Georgia. But Georgia peaches are having a tough year. The state is missing something like 85 percent of its usual crop. Georgia P

发表于:2019-02-13 / 阅读(74) / 评论(0) 分类 2017年NPR美国国家公共电台7月

今天我们要学的词是 circulation. Circulation 有发行量的意思。美国皮尤研究中心的报告说,报纸虽然不会马上消失,但是,The declines in daily newspaper circulation are unprecedented. 日报发行量的降低是闻所

发表于:2019-02-19 / 阅读(83) / 评论(0) 分类 英语单词荟萃
学英语单词
anandas
angulus infectiosus
aplanospores
arillodes
Balobe
bereuter
bidex baling machine
boundary tension
Calvi, G.de
Celsius, Anders
Cenarchaeales
Chapman's pill
click pulley
clockwise polarization
comdial
commercial pledge
CPIT
Credit Spread Option
crowdlike
crx
delay action detonator
denervated bladder
deplistor
devolvings
Dostoyevskyan
dual image processing system
ductus biliferi interlobulares
dutriomycin
ear-to-row method
earthquake observing station
eating-houses
electrobasograph
ERSD
external thoracic artery
feed (liquid) distributor
fertilizer experiment
filiated
fire classification
firehole
first place
fission nuclear reactions
food-deficiency disease
foresmen
gas range
generalized reciprocal method
ghap
Golumet'
group-grope
guanidine kinase
interdivisional
invasivity
inwoods
jaspo pal
Karman vortex
Kirkcudbright Bay
laraque
logic analyser
made no scruple to do
miliary fevers
mobile mount
multiple culvert
nettle ring
nonshorting switch
pivot knife-plane
plant residue of peat
pre-reaction
preponderating anode
presentably
professional indemnity
Propane air
propulsive control
punditic
queuing discipline
reach up
region of runoff
resty
retaining-ring
rhizostyle
rutinic acid
Saromabetsu-gawa
silver-on-line
similarity principle
single pass dryer
site backtracking
so nice
sodium amalgam
spray dome
statement of capital stock
surcar
sushi
tan vat
tar distillation
to supply
translational enhancer
tube extrusion
undeferential
upon a die
use-fully
Varennes-sur-Allier
water-shed inventory survey
with a witness
wood's