[光] 偏振光子

Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of

发表于:2018-12-24 / 阅读(265) / 评论(0) 分类 2015年Scientific American(一)月

A nightlight may keep those monsters under the bed. But it may also open the door to the blues. Because a new study reveals that animals exposed to light all night long show signs of clinical depression. If you have access to electricity, you no doub

发表于:2018-12-24 / 阅读(298) / 评论(0) 分类 Scientific American(十)月

今天我们要学的词是 polarized. polarized is spelled p-o-l-a-r-i-z-e-d, polarized. Polarized是指鲜明的,两极分化的,In today's highly polarized political environment, Republican and Democratic partisans have staked their positions

发表于:2018-12-30 / 阅读(298) / 评论(0) 分类 英语单词荟萃

This is Scientific American 60 Second Science, I am Cynthia Graber, this will just take a minute~ How can we search for life on exoplanets? Step one: examine the Earth as if it were an exoplanet. Thats the idea behind a recent look at earthshine. Res

发表于:2019-01-08 / 阅读(313) / 评论(0) 分类 Scientific American(三)月

This Scientific Americans 60 senconds science. I'm Cythia Graber. This will just take a minute. How did the zebra get stripes. One theory holds that stripes help confused predators. But stripes might be primarilly to protect zebras from ferocious ins

发表于:2019-01-08 / 阅读(301) / 评论(0) 分类 Scientific American(二)月

By Peter Heinlein United Nations 19 September 2006 Secretary-General Kofi Annan opened the annual U.N. General Assembly debate with a grim assessment of world progress during his 10-year term in office. ---- Kofi Annan opens his last U.N. General As

发表于:2019-01-12 / 阅读(428) / 评论(0) 分类 2006年VOA标准英语(九月)

Key Vote Looms in US Amid Polarized Political Atmosphere Sometings during the next several weeks, the U.S. Congress will take up the issue of raising the nation's debt ceiling so that the United States can continue to borrow money to cover a national

发表于:2019-01-14 / 阅读(356) / 评论(0) 分类 VOA标准英语2011年(四月)

DAVID GREENE, HOST: I mean, let's listen to this. (SOUNDBITE OF TV SHOW, STAR TREK: THE ORIGINAL SERIES) JAMES DOOHAN: (As Captain Montgomery Scott) Ready to transport. WILLIAM SHATNER: (As Captain James T. Kirk) Energize. D. GREENE: Yes, the familia

发表于:2019-01-16 / 阅读(311) / 评论(0) 分类 2017年NPR美国国家公共电台7月

But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a

发表于:2019-01-17 / 阅读(309) / 评论(0) 分类 TED演讲教育篇

今天我们要学的词是polarized。 Polarized, 两极分化的。 A polarized society, 两极分化的社会。 The debate over illegal immigration has become polarized lately, 有关非法移民议题而展开的辩论最近日趋两极化。美国

发表于:2019-02-03 / 阅读(283) / 评论(0) 分类 英语每日一词

The Eye of the Dung Beetle A number of animals, including honeybees and butterflies, use sunlights polarization in their navigation s , but the dung beetle is the first animal ever discovered to use moonlights polarization to guide its travels. Polar

发表于:2019-02-16 / 阅读(268) / 评论(0) 分类 英语听力文摘 English Digest

今天我们要学的词是polarized。 Polarized, 两极分化的。 A polarized society, 两极分化的社会。 The debate over illegal immigration has become polarized lately, 有关非法移民议题而展开的辩论最近日趋两极化。美国

发表于:2019-02-18 / 阅读(256) / 评论(0) 分类 英语单词荟萃
学英语单词
8-hydroxysubspinosin
acinar carcinoma
Angell international money plan
Anisimovo
anti-stick off voltage
artificial jewel
automatic grid bias
axinost
barrowman
battening iron
beautiful people, Beautiful People
Bilchir
blinken
board of control
Bonasus
bricks in
Brunckite
Bukide, Pulau
buttering trowel
cable noise
Cochituate
comfortable representation
containersful
corticomuscular
courtesy code
cut herring
cyanate ester
cytoplasmic male sterility
depreciation during construction
disorder of magnesium metabolism
dyr air sterilization
equidistant code
faunalpedturbation
fluorinated oxide
fractional root
garrisons
help support
herohead
hooliganisms
houlets
hydrogen flame temperature detector
isodont
Karancslapujtö
kweli
lacquerwork
lamber's low of illumination
layer growth rate
load angle
make no doubt of
may be
microtrash
modulated-beam photoelectric sys-tem
mor.sol.
mulvanies
national-government
obscene material
physicalisms
potassium phenide
precention
protoscoleces
pumping station?
punishment name
rail clamp
resoul
retainers
robe montante
scale of C major
seasonal employee
serial i/o control signal
shamma
Sidalcea
standard seismic coefficient
standard UNIX kernel
sultrily
superdeformed states
surface unevenness
synradioulnatis
synthetic product
tail-gate hinge-rod
take out a summons against sb.
TCP-Friendly Rate Control
territoried
theoretical gravity value
tmams
toxic assets
transmission level measuring set
transmitter empty
tropical anhidrosis
univoque
unless and until
unracking
upcountries
Vanault-les-Dames
velocity field vector
vitric tuff
wallcovers
water pump cover plate
wave forms
wavecuts
weak axiom of revealed preference
weatherproofing
xanthic ferralsols