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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(52) / 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(77) / 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(60) / 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(78) / 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(64) / 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(107) / 评论(0) 分类 Scientific American(四)月
学英语单词
airborne radio installation
amount falling due after one year
anencephalias
Anicha
answer Scotch fashion
armspans
auricular myocardial infarction
baldhus
boosting the competitiveness
browen
by feat of
Caput cornus posterioris
cartographic draftsman
cellulosic-man-made-fibre
Centipeda
chearm
checkered lilies
chibs
chromium pentafluoride
chromous sulfate
controlled surface pore glass
cottises
cotton worm
counter motion
CPEB
dry density
dust collecter
embritite
exothermic auxilliary reaction
extend fraternal gretings to sb
external cache
false detection
fasciculato-
federal control office
ferrimagnetisms
florist shops
Fosalina
gebtiin
gliosa
grey-lime core roof
halaqahs
heterodontosaurid
illicit trafficking
incubation test
irregular curves
jeffersonite
lay an information against a person
lecithin-cholesterol-acyltransferase
Lepidium capitatum
life-office
Longs Peak
lorry loader
M-C asphalt
martuba
membrana duddeliana
Mesocarpaceae
Mirebeau
nasopharyngoscopies
noncurfew
oil bath type oil circuit breaker
opercular (n.)
organic anion
point source
pr men
pre-oval
preferred provider
re-adhere
reaccept
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renovation and transformation fund
repetitive-stress
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root-bark of peony
Sartene
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selected classification service
separating by hand
sexagenaries
silhouet
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steatopygias
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Swinburne circuit
T. M.
Tatsugō
the elderly
three-colour television
Tihange
tilted bottle
timberwind
toone
unitary transformation
unpardon
vanadatimetric titration
vignoble
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white roon
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