Scientific American's Sixty

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. They say that love is blind. And that's probably for the best. Because a new study shows that people who greatly idealize their spouses have the happiest

发表于:2019-01-08 / 阅读(268) / 评论(0) 分类 未知分类

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(133) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola

发表于:2019-01-08 / 阅读(137) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science.I'm Cynthia Graber . This will just take a minute. (Chirping sound.) That may not sound likemuchbut its the loudest animal in the world. For its size, that is. Theinsect called the water boatman is two m

发表于:2019-01-08 / 阅读(132) / 评论(0) 分类 未知分类

Cameras were once big and bulky. Today,really good cameras fit in your pocket. And now, researchers at Cornell havedeveloped a camera thats just a half-millimeter on each side and a hundredthof a millimeter thick. The lens-less device is called a Pla

发表于:2019-01-08 / 阅读(127) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? You've heard of tennis elbow. Well, a friend of mine has gamekeeper's thumb. When he told me his diagnosis, it rang a bell. So I went through the Scientific American arc

发表于:2019-01-08 / 阅读(128) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Obesity is associated with a host of health problems. But a new study finds that obese people may actually have an advantage in a specific medical situation: theyre less l

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? You could think of it as the real dancing with the stars. Two white dwarf stars have been found twirling around each other to make a complete orbit in less than every 13

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Former major league pitcher Antonio Alfonseca had six fingers on each hand. One of his coaches was once asked about the consequences of Alfonseca having six fingers and re

发表于:2019-01-08 / 阅读(137) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? At the recent Lindau Nobel Laureate Meeting, 2009 chemistry laureate Thomas Steitz recalled that at one institution in the 60s, he saw how informal scientific collaborat

发表于:2019-01-08 / 阅读(169) / 评论(0) 分类 未知分类

Plants are sitting ducks for every hungry herbivore that wanders past. But for some greens, a little grazing is the best thing that can happen. They grow back faster and fuller and make more seeds than they would have if left alone. Now scientists kn

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a minute? The carbon molecule known as a buckyball, a member of the fullerene family, can act as a cage for a variety of other chemicals. And now researchers have used one to tra

发表于:2019-01-08 / 阅读(85) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Its tough to beat watching a spaceship lift off. But for us audio fans, theres another sequence during launch preparation thats awfully compelling. At 12:18 P.M. Eastern t

发表于:2019-01-08 / 阅读(161) / 评论(0) 分类 未知分类

Invasive species get a bad rapbut we humans are usually to blame for their spread. Take Japanese stiltgrass, an invasive that arrived from Asia nearly 100 years ago as a packing material for porcelain. When it creeps into forests, it forms dense carp

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Conventional poultry farms use antibiotics extensively, which contributes to the rise of antibiotic-resistant pathogens. But farms that turn to organic

发表于:2019-01-08 / 阅读(89) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Katherine Harmon. Got a minute? Some 50 million Americans 65 and older currently get help from Medicare. But the program doesn't cover all of the patient's medications. After a patient's annual dru

发表于:2019-01-08 / 阅读(122) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? When a healthy rat smells a cat, it flees. But rats infected with the Toxoplasma brain parasite actually follow cat odors, often presumably to their doom, red in tooth a

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 未知分类

This is Scientific Americans 60-SecondScience. Im Steve Mirsky. Got a minute? The traveling salesman problem is afavorite math conundrum: if a salesman has to visit a bunch of cities, how doyou get him to all of them once via the shortest possible ro

发表于:2019-01-08 / 阅读(158) / 评论(0) 分类 未知分类

Some graduate students in science, technology, engineering and mathor STEMonly do research, under the guidance of a mentor. Other STEM grad students also have teaching responsibilities, for example, instructing undergrads or local high schoolers. Now

发表于:2019-01-08 / 阅读(101) / 评论(0) 分类 未知分类
学英语单词
a gob
academy publication
anti-poet
antifriction grease
astern running test
bacterial sporulation
basal veins
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blast injector
botryose inflorescence
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chromium-51
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deny the soft impeachment
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dihydrocarbazole
Diospyros longshengensis
dolomitic marble
double-dealer
dry glue
dry point
dual labor market
dyess
earthnuts
East Central German
effective staple
electro-acoustic
emergency network
eratoena sulcifera
erichthus
fagus grandifolias
fanconi-albertini-zellweger(syndrome)
fayn
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filete
foaming booster
forward path gain
fuel management system
full-width bleaching
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genus philohelas
high resistance ground
hydrogen refrigerated
ilia
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link pack update area
longitudinalis superior
lower paraffin hydrocarbon
lyric poem
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magnetic detection monitor
manufacturing capability
Mathieu groups
MIMR
mind pain
multiple data terminal
ncpap
oil-platform
otherwheres
Phodymeniales
phytosymbionts
platinum-ruthenium alloy
Pogranichnyy Rayon
polynucleotide nucleotidyltransferase
principal statement
push-ups
pusher brake
quinin acetyl salicylate
rail loading machine
reactor feed
renal juxtaglomerular cell
root knot eelworm
rootile
sampleable
Schoenleinii
simili mercerising
sinking fund depreciation method
sorbing agent
spongiform vesicles
stradametrical
thanatophobic
Time Bar of Maritime Lien
traveling resistance
trinitro-a-naphthol
unhelpt
vagus pulse
vignetting of lens
voltage stability bandwidth
whitesmiths
Zeno