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
'Dizzy' Gillespie
.htaccess files
agentivity
amatory, amatorial, amatorious
amiri
arrie
attached edger
balance bob
Beth
Bilpa Morea Claypan
clothespeg
CO2 exhaust system
coleopteran
colicine (fredericq 1953)
colmore
crooch
delay formula
digital coded voice
disease reaction
disposable assessed income
doctrinarians
domesticator
drill pipe nipple
earthiness
eccentric compression member
education authority
epineurium
ER-diagramming
faddinesses
family thiobacteriaceaes
fish strainer
Fortunella margarita
frost free growing period
gas stoves
gittiths
graded hourly rate
Grays River
groveled
hailfellows
hekel
HOV lane
huffy
hydraulic steering unit
inclined tube bundle unit
inverted V formation
isospin matrix
Jujuy, Prov.de
Klebsiella paralytica
lamaist pagoda
Lasne
liberal parties
m-inositol
Maravatio
merchandrise
microvascularization
more-modern
morphine injector's septicemia
multifunctional logic
muscle-wastings
nitroxylate
nuclear reactors
olexes
order-reversing
ossa centrale
palmaris
pennoncelles
phage,bacteriophage
plantation song
poor metal
poruvas
praxism
privacy control
pyodermia chronica papillaris et exulcerans
radial heat shield
reaction control system
recompensing
refin
reparatives
rigid temperature control
run indicator
safeguarder
sedimentation period
setting standard
share a bed
shinpads
silicate impregnated asbestos
societies of friends
sour-grapiness
stephanopoulou
surface weld
swingaway
telestudios
terminates
training ship
undecorates
unguiffrate
utilization for geothermal energy
Waidhofen an der Ybbs
watercooler
whitey, Whities
xenon flash tube
yestertimes