光子散射

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(37) / 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(50) / 评论(0) 分类 Scientific American(十)月

1.He drove very fast to _______ that red car. A. scatter B.overtake C.site D.sponsor 2.Slides are sometimes called ________ film. A. whistle B.vigorous C.robot D.transparent 3.Professor Smith _______the most important part in his paper. A. omitted B.

发表于:2019-01-08 / 阅读(63) / 评论(0) 分类 大学四六级阅读

1.He drove very fast to _______ that red car. A. scatter B.overtake C.site D.sponsor 2.Slides are sometimes called ________ film. A. whistle B.vigorous C.robot D.transparent 3.Professor Smith _______the most important part in his paper. A. omitted B.

发表于:2019-01-08 / 阅读(70) / 评论(0) 分类 大学四六级阅读

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(89) / 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(52) / 评论(0) 分类 TED演讲教育篇
学英语单词
ammonium aluminum chloride
anti-bumping device
antropofago
aonach buidhe hill
arc arrester
arceuthobium pusillums
asterology
backreacted
bottom of stack
brake crusher
callback messaging
capital-starved
casern
chilled roll
classification and regionalization
clearanceometer
clinchingly
collarbone
Cordlichen
culminate
cut a pie
darnedest
daughter cloud
Deaf Smith County
deoxyelephantopin
Doctor Feelgood
dog collars
Draconianism
drum rim
duffer pk.
electrohydraulic cabinet actuator
epi-allelic
falling characteristic
filimarisin(filipin)
Fluon
for what I know
forces through
forged flange
Galatians
gasped out
Geomys bursarius
gyromagnetic frequency
hagis
hard copy numeric input
HE-AAC
heat conduction
height-change line
hydnocarpyl alcohol
hypercompliant
ignores
imriches
inhibitory substance
inside spiral angle
kaste
Kruschen
liquid-nitrogen temperature
liver bud
losartan
main air reservoir hanger
metal-oxide electrode
metastatic septicopyemia
Middle Armenian
milking machine
monometallic currency
nasal gland
null condition
off gas line
opium alkaloid
optimal sequential estimation
ostracion cubicus
position independent variable name
precision of measuring instrument
quadrantly
quodlibetarian
random difference
rapid action hammer
reclaim of compensation
richard wrights
rigid braced derrick crane
running life
second-level domains
service bits
Sibuyan, Mt.
slot coupling
soft paste porcelain
solid-transport equipment
spermatophobia
spheroidal cast iron
steam fitter
subventricular
technical assistance administation
telegraph crosstalk
teller window
there-in
tubbie
user instruction
Vogle's curve
William Falkner
withstanding fire
workships
Xizang Zizhiqu
Yankee-Doodle