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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(78) / 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(61) / 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(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
1-deoxynojirimycin
accenty
accg
acetoxy-acetophenone
acquisition laser
adelomorphous
Alguada Reef
alignmentg
anchoring junction
arive
artery pickling
aster turbinelliss
audio - visual material
ballades
be spoilng for
benigner
Bergtheim
blanketlike
Bovino
budgets
cannibalisation
cassegrain-schmidt telescope
centropyxid
change her tune
cobble
colored tree
communications effect
consecutive aneurysm
consociationalism
cross welt
Dashtak
dinospores
docosandioic acid
earpad
educant
electro-conductivity method
epididymus
extra-firm
find a white feather in someone's tail
flash bark
geosystems
glide trajectory
granolithic finish
guarnere
halvable
hanois
hydraulic duffer stop
hysterical fugue
Inishbofin
iron law
isoporous ion exchange resin
johann strausses
lamelloid
late adopters
laudis
lead someone up the garden
limestone pellet
LR(0) grammar
manhandles
mission category
Mlicrococcus candicans
movement schedule
musket ball
naphthyl-phenyl-oxazole
naval electronic warfare simulator
nifix expression
no - load current
noailles
non radiation field
non-uniform stress field
nonarithmetic statement
overwinds
paraphraseable
parliament building
partition organiztion
patent hammers
photofluorographic
phthalamic acid
pitoes
powerpop
preferred orientation
proparaptera
pseudoprotein
psychiatrical
reciprocal help
resistance wire
Rhacophoridae
rules of war
San Biagio di Callalta
scansive
silking in maize
single position hob
steam admission valve
tachyarrythmias
task-sharing
tickets
triacetonamine
unmarried men
watch circle
wisc-r
Zaporizhian
zhob (fort sandeman)