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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
0756
Ammersee
annual output per vehicle
anti-disaster access
appraisal drilling
artificial lung
arylcyclohexamine
bagwell
blacking out
blue chip investment
box the compass of
bravais theory of cleavage
break through sth
bursting disc
business-people
carapacelike
chauve souris (russia)
chiasma tendinum
circumventions
Coarse Theorem
cold-shouldering
colliers' stripes
compensated micro-manometer
Contactisol
crude heavy solvent naphtha
curved lines of occipital bone
day blindnesses
decoiler
diamond cut
distribution of daylight factor
domestic package
draft evader
electromagnetic cam group
enrichment region
epithelial cell cast
equiphase wave surface
farcified
fareweller
feature extraction classification
fission monitor
foire
frequency modulation/frequcny division mutiplex (fm/fdm)
full scale value
gcs
get an advantage of
green pea
gruesomer
hard-backed
helix hortenses
housing subsidies
hydrated chromium green
hyperleptinemic
in an ecstasy of delight
indirect intent
injection wear
interrupt return check
JanaSangh
magnis
major relay station
marimar
marketing decision variables
marlyn
mine-laying boat
mixte
natural conversion air cooler
neutron-induced re-action
night rail
niurka
pappoose
Paraphlomis reflexa
partialisms
persicot
personal skill
pipe bomb
put emphasis up on
pyridine oxide
quadrature sound system
radio frequency alternator
retina pars ciliaris
rolling-stocks
salimetry
Scillonian
sharav
shot tablast
So. Car.
steel cord strain gauge
Subic Bay Naval Base
tanagrine
thefteous
tin-base bearing metal
ton-miles
tunnel entrance brilliance
umegawa
unems
urobenzoic acid
vacuolus vitellioae
vinnell
VLIW
water spray test
water-bound base
yaks
Yule Ent.