[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(177) / 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(185) / 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(229) / 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(213) / 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(215) / 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(294) / 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(248) / 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(224) / 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(217) / 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(194) / 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(199) / 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(171) / 评论(0) 分类 英语单词荟萃
学英语单词
a dab at
acidolysis
air grille
amino-arsenoxide
among yourselves
beverage alcohol
blasteniospore
British Shipbuilders
cardio-omentopexy
caruncle
CD-R machine
check base
chorusses
chusts
collecting note
congoleses
damnation
data keyboard
demonopolize
Detravis
dramatised
dysbetalipoproteinemia
elm families
flank steak
front drive axle housing
genuine milk
geometrical-moment of area
glazing glass
hallcist
haloless
here's the thing
heterophylline
horizontal parity
hospital administration
impeller disk
induyre
knot wood
ladle shand
latent print
letting loose
Levant morocco
longitudinal polarization
mantus
matchfacts
Melica virgata
multifork
n-phenylacetanilide acetamide
Neonomians
net of tax income
Nujiang River
off-(the-)floor trader
ophiopogons
optical test bed
out of envy
overhead engine
paraneoplastic syndrome
Pecteilis susannae
peculiar people
peniophora bicornis
pentasulfide
performance attributes
philologists
position detector
power steering unit
pratyeka
preservative treated plywood
Prestociclina
Princeton-First-Year
pseudo column
pseudoappehdicitis
ptr.
rabanne
rotary resistance derivative
semi-closed cycle turbine
skew symmetric mapping
spillite
spring compressor
stow-wood
strategic television
styrolenes
subcooling water
sudden load interruption
sulfaciazine
surface effect
suspension weight
tectono-karstic depression
telementation
the four hundred
there's nothing for it
total outstanding loans
Troisvierges
tropicale
turbulence shear stress
uncapitulating
vapo(u)r cock
variegated scouring rushes
venospasm
waterproof wire
Williams' phenomenon
wirtzs
Yinjiao
zirlite (gibbsite)