2011年Scientific American's Six

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. They say you should take the bitter with the sweet. But if you're not a big fan of bitter, chemists have just the loophole for you. Oh, you'll still have

发表于:2019-01-08 / 阅读(174) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? A rolling stone gathers no moss. But a salamander embryo can attract algae inside its tissues and cells. This intimate co-habitationthe first ever seen between algae and a

发表于:2019-01-08 / 阅读(189) / 评论(0) 分类 Scientific American(四)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(214) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. When you hear about asteroids close to the Earth, you probably have visions of collisions and extinctions and a post apocalyptic future or of brave space c

发表于:2019-01-08 / 阅读(185) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(211) / 评论(0) 分类 Scientific American(四)月

[fly]This is Scientific Americans: 60-Second Science, I'm Steve Mirsky. Go a minute? Only ten percent of people die from primary tumors, the real problem is when it spreads around the body, the problem of metastasis. Arizona state University's Paul D

发表于:2019-01-08 / 阅读(223) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Christie Nicholson. Got a minute? The National Sleep Foundation released the results of its annual sleep poll today, where they surveyed more than 1,500 people between the ages of 13 and 64. Here a

发表于:2019-01-08 / 阅读(154) / 评论(0) 分类 Scientific American(三)月

We Americans love our fast food. And a new study shows that a little thing like a nutrition label is not gonna stop us when we want a breakfast burrito. In January 2009 King County, Washington imposed mandatory menu labeling on all restaurant chains

发表于:2019-01-08 / 阅读(157) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Many people love what they consider a suntan's healthy glow. But the color you get from eating vegetables might be the most attractive glow of all. Tha

发表于:2019-01-08 / 阅读(278) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Its a now-they-know-how-many-holes-it-takes-to-fill-the-Albert-Hall situation, because researchers have measured the actual blood alcohol level of fans leaving professiona

发表于:2019-01-08 / 阅读(150) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. It's one of the oldest moves in teen dating. Head to a scary movie. As soon as the scary music kicks in, your date cuddles closer for comfort. Well, so

发表于:2019-01-08 / 阅读(168) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60-Second Science. Im John Matson, Got a minute? Imagine a pinball machine on multi-ball modeonly the balls are the size of planets. The early solar system was such a rough-and-tumble place. That chaotic environment produ

发表于:2019-01-08 / 阅读(141) / 评论(0) 分类 Scientific American(二)月

Companies spend billions on advertising every year. But they're not just pushing productsthey're selling their brand's personality, too. Think: Red Bull. What comes to mind? Most people say things like speed...power...hyper...extreme. Well, a pair of

发表于:2019-01-08 / 阅读(160) / 评论(0) 分类 Scientific American(二)月

Orchids are among the most successful flowering plants, with more than 22,000 species around the world. And thats not just because of the obsession they inspire in their human fans. Researchers spent 10 years studying orchids in South Africa, where t

发表于:2019-01-08 / 阅读(141) / 评论(0) 分类 Scientific American(二)月

Republican Senator Rand Paul of Kentucky has introduced a bill that would chop a half trillion dollars out of the federal budget. And although Paul was trained as an ophthalmologist, his axe doesn't show any mercy to science. For example, Paul would

发表于:2019-01-08 / 阅读(140) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? One of the things that amazed me was when we brought business people back to say, What dont we teach you in school, these were physicists who became business people. We di

发表于:2019-01-08 / 阅读(140) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Christopher Intagliata. Got a minute? Walking through airports, youve probably crossed paths with a few K-9 cops. But those dogs arent just following their noses. They may be led astray by where thei

发表于:2019-01-08 / 阅读(155) / 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. Many of us have plenty of leisure time to devote to trying out the latest Wii game or even watching others play poker on TV. But this focus on play is

发表于:2019-01-08 / 阅读(152) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Good news for chilly doctorsyou can wear long sleeves with impunity inside hospitals, because University of Colorado researchers find that docs pick up just as much bacter

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Ahhh, the great outdoors. Great for your health, too. Because studies suggest that the more we visit local parks, the more fit we are. Researchers at Pen

发表于:2019-01-08 / 阅读(140) / 评论(0) 分类 Scientific American(二)月
学英语单词
absinthi(i)n
active island arc
alan bartlett shepard jr.s
ammonium alums
anisylidene
annual value product
ball-gown
balplex plotter
beet digger
Bomokandi
braked
C. A. B.
calculation of vegetation covering ratio
chain tube cleaner
cheek clamp
climacterium
cold mud-flow
condition of seamen
corpora spongiosum
cupric anhydride
daystron power plant automation language
denegations
diminishings
domain of interpretation
doocy
ego psychology
electret condenser
electrical property difference
enums
extravaste
flightpath recorder
Google Personalized Homepage
handicap detection
Hering's theory
i-bus
identicon
in no shape
induced mission
insulinemias
lampreys
laparostomy
Le Revest-les-Eaux
light-bulb
linear reduction
long range bomber
mabuprofen
magnetic resonance AC voltage stabilizer
man machine engineering
mansa longicauda
militate in favor of
mis-splicing
more-efficient
multielement(chemical)testing
nutters
ODT
on-light
one eyed jack
optimum revolution
Oranjemund
orniteophilous flower
oval fillister-head screw
palaeomobility
pancake synchro
Paries mastoideus
pathotyping
pharmaceutic
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prexy
proteasomally
protoloph
pyrazinobutazone
release curve
rescue plan
resource dependence
Sand Springs
scanning in reception
shish kebob
shockabsorbing desk
situaciones
slip nose share
Slovakian monetary unit
snedding
solution cavities
static coherence check
stationary waves
steel-greys
stsesns-s
stud wheel
sulphapyridine
Tenji
That's the talk!
tide generating ship
tuyere nose
unemployables
vesicular appendix
vessa
whitawer
wortman
xanthochromia
Xavierians
xerophagy
xtracellular fluid