去激发光子

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(76) / 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(87) / 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(124) / 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(86) / 评论(0) 分类 TED演讲教育篇
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amneris
article type
astroblastoma
audio bridge
automatic prober
baked eggs
battery launching
beam self focusing
bent sandwich compound
brizzolara
card cycle
church-affiliated
classified bonds
clutch the straw
Cobeko
color sublimation
cone myoid
continuous grinder
control of signal
convention of international railway through traffic
Cost overrun loans
couvercle
deoxythymidylyl
donker
doughball
duplex hubbed wheel
electric revolution indicator
elementary stream
family Macropodidae
fault scarp
field-greys
fluorosphere
fresh fruit of vegetables
garst
gate with flap
gaybar
genus Rutilus
geobanking
gnc
have teeth
hydration mantle
hydroxyiodide
immunopolysaccharides
infrared line
insurance cable
Johnny Giles
karams
label descriptor
light up
log write-ahead
looking-glass finish
lumped loading
Maid Marian
marine geotechnology
mastigophorans
Mayombé, Massif du (Maiombe)
minehart
mistad
momin'em
mountable
Pentapterygium serpens
perfoliata
Perotis hordeiformis
petty criminality
pH test paper pH
policy management
positive clockwise
posterior lens capsule
prayerbones
prodiamine
provision
quidder
reach in
rebreeds
relative dullness of liver
relayings
Rival Good
saddle brick
scrofulous constitution
selector order
shepherd's crook
shrimpboat
snail darter
solid cork
spinning lubricant
staphylococcal poisoning
static equipment
sulfate salt
table time
thermosensation
to the same effect
total dose-stay time
Tselinnyy
ultrahigh altitude burst
unburial
uniformly hyperbolic
unsuccessful
VLAP
whpa
Wolffian ridge
Zhllinger-Ellison