双光子激发

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(110) / 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(119) / 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(153) / 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(116) / 评论(0) 分类 TED演讲教育篇
学英语单词
a balancing act
abbreviated formula
adverbs
age-sets
air reducing valve
aloe variegata ausana
altered
anise plants
asymmetric cryptographic algorithm
Augher
avner
beta-ray radiator
bevel-type planetary gear
Bezhanitsy
Bourton-on-the-Water
C8
cholesterolemic
coefficient of water absorption
common peril
commonwealth's-man
crossed static electric and magnetic field
CUIUD
cylinder-liner maintenance
Cynodon plectostachyum
deep felon
destructive read-out
dropping characteristic
dziadowa kloda
eosinophilic granulocyte
estlar
feitsui
finances
fuel-flow divider
general remote terminal supervisor
grain charter
grouping terms
hand bellows
has my back
holding-down latch
information entropy!
instruction ahead
integrated personnel information report
iteration method
ivy
JSOU
knee bracing
leukovirus
lower-left-hand
Macdonald, L.
made broad my phylactery
malevskis
Maurist
moat collar
monel alloy
monochrome TV transmitter
multiturn current transformer
Musculus obliquus capitis inferior
nord-ostsee-kanal(kiel can.)
ongaonga
over-daring
paddle foot
perfect man
Phocus
Poa patens
pocket rockets
policy argument
pre-filmic
protective sanitary zone
pumping joint
pushup storage
Raditsa-Krylovka
rain fastness
Ramus centralis
razumovsky
remote sensing imagery
rubik
safety strap
sample changing mechanism
sanuki -heiya
saving society
search-tube experiment
semisimple module
service review
shadow-nucleus
short-range ballistic missile
simulating of flight
spliceable
stereotypy of attiude
straight-fluted drill
subsurface soil condition
swing cut
trabbi
Tröllakirkja
ultrasonic electrostatic sprayer
undeceitfully
unrecruitable
vaenga
Vevo
water-carriage
widemouth socket
xiaojin mini-pills