2013年Scientific American's Six

Astronaut M B spent 199 days on the international space station in 2009.On Feb. 17th 2013, he told kids about his time in space as part of Family Science Day Effort on the Annual Meeting of American Association for the Advance of Science in Boston.Qu

发表于:2018-12-24 / 阅读(154) / 评论(0) 分类 Scientific American(二)月

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发表于:2018-12-24 / 阅读(145) / 评论(0) 分类 Scientific American(十二)月

This is Scientific Americans 60 second Science, I am Sophie Bushwick, got a minute? Comparisons of different animals have shown that larger brains provide greater intelligence, but they also guzzle more energy and have other consequences. Now scienti

发表于:2018-12-02 / 阅读(180) / 评论(0) 分类 Scientific American(一)月

Medicinal tablets are nothing new. Doctors have been dispensing pills for thousands of years. Now, archaeologists have turned up some of those ancient medicines which were preserved in a shipwreck for close to two millennia. The 2nd centry Pozzino wr

发表于:2018-12-02 / 阅读(184) / 评论(0) 分类 Scientific American(一)月

When normal population of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as Clostridium Difficile, C Dif. The mean symptom is nearly constant and debilitating diarrhea. One of the

发表于:2018-12-02 / 阅读(319) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60 second Science, I am Gretchen Kuda Kroen, this will just take a minute. When normal populations of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as

发表于:2018-12-02 / 阅读(144) / 评论(0) 分类 Scientific American(一)月

This is Scientific American 60 second Science, I am Karen Hopkin, this will just take a minute. There are in fact 100 billion galaxies, each of which contains something like a 100 billion stars. Well, Carl Sagan would have loved to get the latest est

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发表于:2018-12-02 / 阅读(150) / 评论(0) 分类 Scientific American(十二)月
学英语单词
1-methyluric acid
adrenocortical adenoma
aeoliss
afure
anaphylatoxism
animal rightist
apical grafting
apparatus of reducing static electricity
aspergills
axiom of replacement
background activity
behavio(u)r sociology
blood cold
cage screen
calorie-counting
Chlorosulthiadil
cilligen
coal analysis
coloring problem
complex correction
coreen
cosmocampus banneri
crank-and-rocker mechanism/crank-rocker
cutometers
cylindrical shell theory
Czerny's suture
day beacon range
dimpled alumin(i)um foil
dirt pits
double dots line
drive device
eelier
Eleutherios
Elizabethan collars
Enoplidae
entreatise
environmental media
flag-carrier
fluviomarine deposit
form an alliance with
gape erosion
glass gauge
graded base
grandstand play
habergeons
hobbist
ieee 802.4 token bus access method
it's an ill wind that blows nobody any good
jurisprudent
kornhaus
kramers' necklace theory
Lanier
Lapai
Laplace planes
lashwise
loukaitis
Lyctidae
main droite
Malad City
musculus levator vulvae
Navy Tactical Data System
negative ion mass spectrum
nejaa
non siliceous sand
of love
ORCAELIDAE
out of one's time
p-chloroaniline
paper-ballot
pasteurized juice
poll-ox
polyallylamine
positioning operation
product responsibility
pugmill mixer
pushiest
quenching crack
radiant flux measurement
radiative forcing
rate flow
reimmerge
relational schema normalization
scanning field
sensure
slop feeding
social opportunity
soft furnishing
squelette
sssosustshs-s
subissue
take shelter
tats-unis
television reflector lens
tidal influx
transcolated
unbroadcastable
underhung
uneducate
upper jaws
welding interval
West Melanesian Trough
widescale