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

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发表于:2018-12-24 / 阅读(164) / 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(203) / 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(211) / 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(348) / 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(178) / 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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学英语单词
3-nitroanthranilic acid
aaron montgomery wards
Adar Sheni
airborne plateform
allophite
anastomotic button
ascending node time
autocatalyze
axial force of rail
balance constraint
basic information unit
Beaverhead River
Borino
bulk wood chip carrier
bursik
career selection education project
carminate
counter for petrol
Crimea-Congo hemorrhagic fever
DCA
deck roller
dermatological aetiology
design stress
differential prices
doctor for infectious diseaseg
Ectothiorhodospira
Electronics Industries Alliance
electrooptic cell
equivalent air volume
erythrorhizon
examination of final state accounts
extroversible
failure to act
fasciaboard
fluid deicer
fore-bridge
Frankland, C.
free area / paid area
frelon
ghyka
gifts inter vivos
goretti
hand grip
heteropelma amictum
home currency bills receivables
hook ups
humeral callus
impulsed spot welding
intermal revenue service (irs)
international conciliation
intraprocessor interrupt
Karasal
kiwi fruit, kiwifruit
laughtre
leaf fats
lividness
lost update
manoeuvreable
member structure
micro-kinetics
Mossy R.
nangle
non-participants
nonhomeomorphic
not impossible
novy apparatus
open-air ionization chamber
output module value
oxidator
pediatric examing table
platinum family elements
poitou-charentess
Polly Parrot
post-conference
pre-recession
providently
rabbit-foot
rear rapid traverse lever
replots
request send circuit
Rhiz.
rhr pipe
riboses
rockrose families
Rudolphstein
sharwoods
Silvianthus bracteatus
stage-discharge relation curve
suppressed output
Tan Thuan
terminal line of pelvis
terrain measurement
tissue molding
track-and guidance laser radar
trapezoidal spline hob
two-speed AC electric drive
undressed flax
unpredictive
vee-bottom hull
walston
waveguide far infrared laser
xylosylfructose