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(124) / 评论(0) 分类 Scientific American(二)月

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发表于:2018-12-24 / 阅读(111) / 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(138) / 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(133) / 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(263) / 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(116) / 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
-ectasia,-ectasis
air control operations
aircooled cargo
airport surface detection equipment (asde)
allergic pneumonia
Amcide
angle transformation
angusrifolin
aslett
astreopora moretonensis
Bealanana
bibliothekes
biological dosimetry
bit-images
capture buffer
Carrier Ethernet
coefficient standard deviation
condensation efficiency
Cythara
deep-litter house
dental engine cord
digital relay
disadventurous
draft control system
dry process
environmental protection agency progress report
frost point hygrometer
gas mantle
grips
harmonic excited generator
heavy bitumen
holdstocks
ideal highpass filter
interest school of law
intrinsic Young's modulus
Japan Railway Technical Service
kahului
kinetic stability
leisk
Liebercrat
light-mindednesses
logon (log on,log-on)
loss carryback and carryforward
Madliena
Meregate
methyzazone
micrographically
milling department
minicluster
molded products
multiple stage harmonic gear drive
mushroom rock
nook or cranny
occalcarine
officebuilding
offset error
oostegopod
orissas
ovens-to-table
Oxwich Point
Oxytropis baxoiensis
patavine
peaking load hours
period under review
planning variable
poupon
primary cutaneous mucormycosis
rain density
reattainment
religionistically
roentgenocinematography
shit shows
Shitler
sintered foamed metal
slot-and-wedge type
snow chains
spermaceti wax
stand-by current
standard rating cycle
steel column
submerged nozzle
sustained ceilling current
tablet block instrument
tammerforss
technopositivist
terminal adapter
thiosine
tilting-pad bearing
time penalty
total division
Treig, Loch
trigger formula
truck brake cylinder
v-shaped grains
vauntless
Vladivostok agreement
VSPAN
water soluble organic substance
water-gas reaction
werecreature
wind aloft observation
wool blends