三光子

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(98) / 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(109) / 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(143) / 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(105) / 评论(0) 分类 TED演讲教育篇
学英语单词
47th
acephalocystis
acupuncture anesthesia apparatus
after-effect function
akidogalvanocautery
aluminium sufuricum
amoralis
antiachromotrichia
aquafauna
Baltic languages
baryte deposit
be around the corner
brewerton
buryer
cefoselis
centroiding
Coligni
collacin
common sedges
compound metal
constructional
contusio
dark-siding
dominicans
easytran
elimination of
emdas
enaunter
eruca sativas
exchange kisses
external node
get up one's thirst
Gin Gin
hand held portable electric tool
harmonic chromatic scale
Heckerism
homesickly
horizontal visibility
hyper-graeco latin square
impossibilities
infinite order
initiation event
international delinquency
intracavernous aneurysm
junior instruction centre
kubelka-munk equation
Lipari
Loquin
low-degree
lyophilized collagen
menstruations
Mephton
microteeth
ojha
outermapping radius
overall shipping height
pawlenty
planimetric(ground feature)
platinum family elements
power-limiting
powerman margin
presetting bit
propco
quatuors
radburn
rakaposhi group
recovery of potable water
region articulation block
remaining number
replace by
reznik
Rosarinho
scarlet rash
seabathing
sedentariuss
seismic logging
single fold
skin toner
skip-floor apartment
special exporters' declaration
structural breakdown
Sumner.
superior olivary nucleus
supply side
swegs
systematic point of view
Tabat
team bench
tension piece
Terabolin
tinniness
trolley-pivot
unfurrowing
unglazed fruit
universal mains unit
unneatened
viscometron viscometer
well-located
welter-weight
young students
zone melting technique