[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(182) / 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(205) / 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(237) / 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(228) / 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(224) / 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(314) / 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(268) / 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(235) / 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(235) / 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(203) / 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(205) / 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(176) / 评论(0) 分类 英语单词荟萃
学英语单词
5-bromoisophthalic acid
a MFM
all consequences
amoeda
asynchronism
automatic white balance control
battery energy
Berthollet's law
bestridden
cerebral hemispheres
chapones
chenodesoxy cholate
cnoes
co-official
cohortation
commercial mission
complex resonance
crankcase oil additive
crewel-work
currency of payment
curtailments
dead sheave
delocalizings
diesel electric tandem motor drive
dinner at eight
Dirian
downshift
electrical isolation optical memory
flit gun
fluid producibility
flux pinning
frame-type switch-board
freik
galloformin
Gander L.
garden planning direction
garden.com
gate turn-off
golden hamsters
hackas
hacking and spreading machine
harlow shapleys
high birefrigence optical fibre
horsewoods
hot air seasoning
initial potential flowing
interstitial organisms
isodynamics
isofenphos
keplerian rotation
kinetic depth effect
Kitasatoa
La Rivière-St-Sauveur
lanner falcon
Larix occidentalis
life sucks
madapolam
minimum critical infinite slab dimension
miss-match
nano-fluid
natural economies
Nosopsyllus
one core per bit
outside broadcasting
pastureland ecology
photocell whiteness meter
photoprint
poecilopsetta praelonga
power-line carrier
precision tool room lathe
productivity increase
progress-monitoring
prolectite
punctured
recanalises
reference amplifier
repeating decimal
retrodirective reflection
rhomboclase(rhomboclasite)
riot risk
road gangs
shim action
signal transfer lag
sinuation
social facts
space research institute
spiroergometric
state transition probability
static image
subhumeral seta
survey certificate
syphilitic cardiovascular disease
technomaniac
the y
touchsmart
turdus pallidus
two-force member
uniformity of temperature
unione
used furniture
winder
wurmal