2013年Scientific American's Six

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发表于:2019-01-20 / 阅读(122) / 评论(0) 分类 Scientific American(十二)月

This is Scientific Americans 60-Second Science. I am Katherine Harmon. It will take just a minute. Jupiter's great red spots, it is one of the most familiar site in our solar system, it is also one of the most mysterious. Because based on most calcul

发表于:2019-01-20 / 阅读(144) / 评论(0) 分类 Scientific American(十二)月

How do you to find 1 kilogram? Easy. It's the exact mass of medal cylinder called the international prototype kilogram. IPK, for short. Kept in controlled conditions in France. But the standard kilogram has gained weight since its creation in 1875. T

发表于:2018-12-24 / 阅读(141) / 评论(0) 分类 Scientific American(一)月

This is Scientific American 60 second Science, I am Sophie Bushwick. Got a minute? Medicinal tablets are nothing new. Doctors have been dispensing pills for thousands of years. And now archaeologists have turned up some of those ancient medicines, wh

发表于:2018-12-24 / 阅读(127) / 评论(0) 分类 Scientific American(一)月

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

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 Scientific American(一)月

This is Scientific American 60 Seconds Science. I'm Elly Wilkeson, got minute? Our homes glow at night. Lightbulbs, TVs and now computers, E-readers, tablets and smart phones expose people to an increasing amount of light after dark. And the color of

发表于:2018-12-24 / 阅读(145) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-second science. I am Karen Hopkin. It will take just a minute. Thanks for the Wifi we can watch TV, play games and check email from the comfort of the couch. And soon we maybe able to repurpose our Wifi signals so we c

发表于:2018-12-24 / 阅读(127) / 评论(0) 分类 Scientific American(十)月

Called grass hopper mice have an unusual favorite food. Not grass hopper, no, they really like scorpions. You can see theproblem. But the mice shrug off any scorpion things(stings).And the new study shows how. Researcher injected common house mice of

发表于:2018-12-24 / 阅读(187) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americana 60 Seconds Science, I'm Christopher Intagliata, got a minute.The Sahara desert isn't known for its greenery, but there's evidence it was once much lusher than today, dotted with waterfall and lakes, now a study suggests t

发表于:2018-12-24 / 阅读(123) / 评论(0) 分类 Scientific American(九)月

This Scientific American 60 Second Science, I'm Sophie Bushwick, got a minute.Developed countries spend about 3 percent of all their electrical power treating waste water, the juice purified contaminated material so it can be returned safely to the e

发表于:2018-12-24 / 阅读(121) / 评论(0) 分类 Scientific American(九)月

This Scientific Americans 60 Seconds Science. I'm Wit Games, got a minute.A bad infection can make you delirious, but mind clears once germs are gone, usually. Not so when researchers recently injected mice with taxol plasma Ganede, this parasites pr

发表于:2018-12-24 / 阅读(129) / 评论(0) 分类 Scientific American(九)月

Iconic works of art get exhibited worldwide but as these painting's age they can become to fragile to estan travel around the globe.The pink can be visually examined to gage the integrity,but the only way to check the canvas had been to move a piece

发表于:2018-12-24 / 阅读(157) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's Sixty Seconds Science. I am K.H., this will just take a minute. Thanks to WiFi, we can watch movies, play games and check email from the comfort of the couch. And soon we may be able to repurpose our WiFi signal so we ca

发表于:2018-12-24 / 阅读(112) / 评论(0) 分类 Scientific American(十)月
学英语单词
apocrine retention cyst
arabescato
be in mourning
best
bi-cable
bibliopolar
blue beans
browest
bustiers
carbon transfer coefficient
cell-mediated immune responses
center line of road
Ceres
Chahak
cnvironment
Concomitanttreatment
coordinate multiplexing circuit
corsica
coworker
crescent mark
cubitoradial ligament
cyclotron resonance pumping
dislocatory
DO type function
doused
DPRB
Du Noiiy phenomenon
dystrophic rhinitis
eanaliculization
ear capsule
eicosadienoic acid
elective judge
electric insulation
Eucalyptus amygdalina
exclusive-nor gate-
exclusively preferences in force
filoselles
fire travel
fulfill a need
galianoes
gnet
HBLA
heisenberg's hypothesis
heteroideous
homoimmunity
hypopolyploid
Illigera rhodantha
in a stroke
integraph
international settlements in connection with foreign trade
interparticle friction
Investment Advisers Act
ionization box
Jemaluang
K. & J.
land ours
large scale integration circuit
last finishing pass
limiting velovity diode
losyngye
Mach one
Mambia
marskes
Marstrand
mastro
mean corpuscular volume concentration
metal disc antenna
mngie
modular architecture
monocentric evolution
multimode interference devices
mustela putoriuss
myiophilae
nonvictim
of wide fame
omentopexies
overactivity
oxygen cleaned valve
Phenaloin
pre-approved line of credit
prohormonal
racialisation
REMSA
replaceable thing
rouergues
scaffolding protein
Schjetman Reef
Seine-Maritime, Dép.de la
Self do, self have.
sex cell ridge
shanzhai
shield off
shihu yeguang pills
silkworm moth
Svetislav
swanneries
synovial diverticula
throatiness
to be sick
tovaglias
transverse level
Yeongwol