标量光子

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(163) / 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(164) / 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(198) / 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(191) / 评论(0) 分类 TED演讲教育篇
学英语单词
Aid-the-poor programme
anglican churches
appropriate technique
assend
bed separation
borsht
can lift
Carex tenuiflora
Conopophagidae
continuous time dynamic system
curso
denticulate
distichs
dorsal ligament of base of metacarpal bone
ear operating instruments set
electric flower car
electrodynamic repulsion system
Erdal
estrapade
estrogenism
expander type ring
externally temperature influence
fall in (synchronizing)
fire water lift pump
Fritzlar
Gardner I.
geras
Gföhl
grith
groundhopping
heterophyiasis
Hibiscus leviseminus
high - end customers
horn relay
hymenophores
hyperlucency
ice-making capacity
idiotypicantigen
informal meeting
insurance underwriting losses
International Pen
interno
irrigation canal system
jaspachate
khanh
Kondiadou
lamora
laparo-
latz
lime-base grease
loose protection course
macrominerals
marine archeologies
mashhad (meshed)
mentry
metal casement
metric property
microcomputer software
microne
microwave biological effect
middle childhood
minced fish
new product decisions
New Thoughtist
overraced
parosamias
Phaeodaria
potassium ammonium tartrate
principal mode
problematical
process control function
propogation
radiochemical analysis
raise a big stink
re-rolls
repocketed
Retriever Seamount
rockmond
roging
rolls-out
Saturday Night Live
scuzzy
secondary personnel
spider wrench
standard deviation observating
starna
stored carry
the union of body and soul
tight on
timevariation
tin sesquisulfide
total on-hand cost
tumor of glomus jugulare
ultra-high frequency(uhf)
V-roof
vee-type diesel engine
web-servers
weens
werres
Westmans
white-leaved rockrose
write oneself out