[网络] 多光子吸收

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(35) / 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(49) / 评论(0) 分类 Scientific American(十)月

Imagine a world where sunlight can be captured to produce electricity anywhere, on any surface. The makers of thin-film flexible solar cells imagine that world too. But a big problem has been the amount of silicon needed to harvest a little sunshine.

发表于:2019-01-08 / 阅读(65) / 评论(0) 分类 Scientific American(二)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(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(50) / 评论(0) 分类 TED演讲教育篇

Around the world, many people start their day with a cup of coffee, a cappuccino, or an espresso. At the same time, there are many people with various thyroid conditions who rely on synthetic thyroid hormone replacement medication like levothyroxine

发表于:2019-02-01 / 阅读(64) / 评论(0) 分类 实用英语
学英语单词
ablepsy
agroeconomic data
anethene
anticrotin
arteriae auricularis posterior
automatic termination of cover
averbach
ballspacer
barrow run
benvie
benzylsulfanilamide
bestain
bleed-out
bozzetto
brazing spelter
breithauptites
bring into existence
car races
cheilinus unifasciatus
cicadae
colipuncture
contract specialized lines of work
Cromadrenal
deferred life annuity
diamond antenne
Diatifere
Diderichite
dock charges
domaining
exploration information system
filterbanks
first spermatocyte
fistulogastrostomy
float finish device
fortran variable
free from glare
free publicity
Fundamental Counting Principle
golf pencils
grub and bub
halftone ink
halohydroxylation
induction method of fault localization
inferior
inverse correspondence
Kartvelology
land waste
line plotting
llgamenta arcuatum internum
math equation
microtel
Microula sikkimensis
midget duster
my heart bleeds for
naval coastal warfare commander
Nekhebet
nonsymmorphic
not worth a groat
Old Bulgarian
Outlook Express
oxyclean
pine kernel
planar force system
position of hydrant
probability-statistics
quadrupole probe
quasi-official
Refetoff
relamped
reproductive bud
results-based
rheography
robothood
root lifter
rough hands
Sandstroem's gland
scram controller
scrubdown
see service
self-full
Semicillin
serf-steering axle
ships loading computer
short time running
silver polish
stable subspace
Stark County
steady vessel
straight hangs
supra-orbital
taking holds
tetralophodont
tirries
troger's classification
turbulent line width
Uehrde
uped sticks
upright board
urachus
welbede
wool comber
Yakala