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(109) / 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(114) / 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(135) / 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(120) / 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(139) / 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(88) / 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(84) / 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(97) / 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(201) / 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(80) / 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(97) / 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(73) / 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(88) / 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(64) / 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(61) / 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(74) / 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(81) / 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(74) / 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(70) / 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(78) / 评论(0) 分类 Scientific American(二)月
学英语单词
afoords
aristoloside
audio technology
auditing around the computer
automatic block installation
b. suprapatellaris
Bangued
Bislama
blast amount meter
blepharomelasma
Bukit Timah
car roof
cascaron
charging dynamo
cluster radioactivity
common trust fund
Coningham
Cotoneaster divaricatus
currejong
customer's ledger
desterilizing gold
diagravitropism
diphenhydramines
double work time
Draba jucunda
echo power
electric cooker range
eolian placer
experimental psychopathology
final registration
flat compounding
floating-point radix
formed height of un-loaded single disc
Futures option
gesto
glucosamine-6-phosphate
healthcare facilities
heavy pumping
henrey
high level job control language
idionodal rhythm
in breeding program
inflammable compressed gases
inserted fraise
instrumentalis
iodoxy-
iridium(iv) hydroxide
jaunting cars
jet method
kentel
leafen
locking frequency
marback
monolithic patch
myxofibrcmata
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notch grinder
obliger
oil red
olfactic
oral gangrene
orderly market
Oxon.
palladium(ii) palladium(iv) sulfide
patch reef
periodic discharge
phase of folding
phytophily
picture string character
plant mulching
Point Samson
Police Navidad
potassium metamolybdate
preembargo price
raggery
remontant
reticulate duct
rotation perception
runaway star
salmon peel
second brief
set-up-scale meter
shahanshahs
sheared diagram
sinocythere yowdyi
some such
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spacecraft material
spring conjunctivitis
steel heald
suck lemons
table roll
tapping voltage
tartre
tone signal
ungrandiloquent
unrelevant
win eminence
wish sb success
Zenadrex