音标:['tu:f'əʊtɒn] ;
双光子

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(79) / 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(90) / 评论(0) 分类 Scientific American(十)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(125) / 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(89) / 评论(0) 分类 TED演讲教育篇
学英语单词
a quo
access network
air-driven dermatome
andorra kernel language
anthropophonic
applied linings
arouse a nest of hornets
asimow
bran fragment
breathing regulator
Call Risk
charge-ahead
Chaves County
cigaro
coilgun
cold-pressing property
collectibles
compensating-field winding
compound harmonic motion
conduction oil
congenital persistence of pupillary membrane
congresses of racial equality
contour of equal loudness
coparent
correlative conjunction
cursitor
deer-lick
East Canton
establish contact
evaporation of electrons
exerpt
fahrvergnugen
flashing jack
flexiboard
functioning machinery
genus Beta
get your just deserts
gradation scale
guzzardi
HEALPix
hing joint
holoway
hooses
interference (of waves)
junglier
kuhlthau
lakish
main logic
Maksimovo
marchenko
marginal sterilization
maximum effective rate
Meehania urticifolia
millimeter wave filter
missile-launchers
mushroom anchors
nautical knowledge
new method
Nicotiana longiflora
nucleus transplantation
optimus prime
orbiculociliary fibers
oversharers
oversteep
p27kip1
pay supplement
pickfords
prestosuchids
process simulator
pseudovalve carpel
quarterline
reel stopper
rhinoceros viper
ribeyes
sacra fistula
scarped plain
schalen
self-tune
semidiurnal wave
session network services
slippiness
sof
stower
subatomic chemistry
superconducting power transmission
supraorbital canal
test for identification
the sponsor
thousand-yard stare
thugged out
thyroid heart
to row
totally normal orthogonal system
Udorskiy Rayon
unstable region
Vena pulmonalis sinistra inferior
volt-line
vorarephilia
wedge-shaped graben
wirewounds
workable underground mine reserves
Zêzere, R.