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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

发表于:2018-12-24 / 阅读(54) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(81) / 评论(0) 分类 Scientific American(三)月

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(79) / 评论(0) 分类 Scientific American(九)月

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

发表于:2019-01-08 / 阅读(65) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 Scientific American(四)月
学英语单词
active amyl propionate
adab
administrative self-regulation
afilamentous desmosome
afro-creole
Ancyrochitina
annular slot nozzle
arec-
aureola
become flat
beverly hillss
bidding rules
bihar cotton
binder program
Blastus cavaleriei
Boat the oars!
bonding region
Bullish Homing Pigeon
Cabo Rojo
camber ratio
canulizations
capillary phenomenon
compensatory tracking
coniferyl alcohol
continent-island model
curriculum management
cypris larva
decolour
deflection-type cathode-ray tube storage
diamond cake
diferencia
diffusionless phase transition
discardure
dust theory
ean-shuin
earth resource satellite
elances
equiaxed grain
Eschscholtzia Cham.
false rues
family Oxalidaceae
fixation index
food scientist
get a look at
gooseage
grab some pine
graphs
green soyabeans
grid resonance frequency
Guanabcnz
gun stock
harga-
Hevelius, Johannes
initial condition response
inquire of sb about sth
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involvement of myocardium
keep shop
knife section
literalnesses
manpowers
measurement of principal dimensions
mechanical deposit
Midaslike
miniconglomerates
moo goo gai pans
morning paralyses
mugdocks
Nakuran
nimming
page hierarchical memory
patriarchalistic
patronymick
piledrive
POCT
pogoing
port sill
Provisional Regulations on the Governance of Populations
quest out
radio time code
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Sankt Salvator
Saxifraga nangqenica
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Sinpo
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soi resurf diode
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subcaliber rocket
superoperators
swig up
tritriacontanoic
up on things
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Varangerfjorden
vector, graphics
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waves through
Zorach, William