2009年Scientific American's Six

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(204) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. The heart-stopping news from Stockholm is that the heart never stopsgrowing, that is. Because researchers have shown that the human heart continues to pr

发表于:2019-01-08 / 阅读(227) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science, I'm Christie Nicholson. Got a minute? If youve spoken to anyone in New York City, where Scientific Americans offices are, then youve heard about the rain, every day since mid-June. Still, were not in t

发表于:2019-01-08 / 阅读(163) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Thrill-seeking stunt pilots spend years learning to perform maneuvers that birds and bees know how to do from birth. Now a new study in the journal Scien

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This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? Altruism poses a problem for the theory of survival of the fittest. If we help others at a cost to ourselves, nice-guy behavior should die out, because we are giv

发表于:2019-01-08 / 阅读(191) / 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. It's April 15th. Like many people around the country, you might be feeling your blood pressure rise as you deal with everyone's favorite activityfiling

发表于:2019-01-08 / 阅读(182) / 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. Hard-training athletes boost their performance with a variety of popular sports drinks. These drinks do work. But not in the way youd think. Thats acco

发表于:2019-01-08 / 阅读(170) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? At Antarcticas Blood Falls, the ice is stained red by ancient, iron-rich water pouring out of subglacial lakes formed millions of years ago. The cascading water is e

发表于:2019-01-08 / 阅读(152) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The new Yankee Stadium has opened in the Bronx. I went to a game Saturday, and its a much friendlier place for anyone trying to eat healthfully and maintain some envir

发表于:2019-01-08 / 阅读(161) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-second Science. Im Steve Mirsky.Got a minute? The US Consumer Product Safety Commission and DND Imports of Los Angeles recently announced a voluntary recall of something called the dinosaur Era Two Hunting Dinosaur Pla

发表于:2019-01-08 / 阅读(182) / 评论(0) 分类 Scientific American(五)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Climate change is the great environmental challenge facing the world today, but maybe we should start calling it Climates Change. Because scientists who've

发表于:2019-01-08 / 阅读(188) / 评论(0) 分类 Scientific American(五)月

This is Scientific Americans 60-second Science. I am Karen Hopkin. This will just take a minute. Some names never seem to go out of style, like David or Emily. Some never really catch on. Not many girls are named Laurel, even fewer are named Lauryl S

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 Scientific American(五)月

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(165) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Male chimpanzees often compete aggressively for mates. Now researchers have observed a friendlier behavior that males use to woo potential partners: they exchange meat

发表于:2019-01-08 / 阅读(172) / 评论(0) 分类 Scientific American(四)月

Some things are hard to remember. Others are hard to forgetespecially things that are traumatic. But kids, it turns out, are better than adults at forgetting the bad stuff. Now scientists think they know why. According to an animal study in the Septe

发表于:2019-01-08 / 阅读(138) / 评论(0) 分类 Scientific American(九)月

When we lie, our brains work hard to make sure we get the story right and come off as truthful. Law enforcement officials try to tap into that effort, for example with polygraphs, to find out if a suspect is telling the truth. But such stress tests a

发表于:2019-01-08 / 阅读(127) / 评论(0) 分类 Scientific American(九)月

To do a job right, you need the right tools. Even a chimp knows that. According to a study in the American Journal of Primatology, chimps in the Congo use multiple tools to capture army ants. Youve probably seen footage of chimps using sticks to harv

发表于:2019-01-08 / 阅读(193) / 评论(0) 分类 Scientific American(九)月

The National Oceanic Atmospheric Administration [NOAA], spends most of its time trying to understand and predict changes in the environment, along with conserving and managing coastal and marine resources. But its scientific expertise also just made

发表于:2019-01-08 / 阅读(165) / 评论(0) 分类 Scientific American(九)月

We humans love to decorate things. We wear flashy clothes, tie ribbons to suitcases and personalize the cases for our iPhones. And apparently weve had this tendency for a long, long time. More than thirty-four thousand years, to be exact. Harvard res

发表于:2019-01-08 / 阅读(128) / 评论(0) 分类 Scientific American(九)月

If scientists have their way, we may someday be tapping maplesnot for pancake fixins, but for power. Because researchers from the University of Washington in Seattle have found theres enough electricity flowing in trees to run an electronic circuit.

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 Scientific American(九)月
学英语单词
air-gap
allansons
allevation
arundinella anomala steud.
as sure as I'm sitting here
automonitor routine
baenre
Barkly Pass
base of modiolus
bidirectional pumping
boosey
brighten out effect
Camellia acuticalyx
card-to-tape conversion
chlorocyanhbydrin
Chungjow
COX-I
declaratorily
devivals
Diffusion through an arbitrary plane
digotrophic
direct grant
Disporopsis
Dorpat
downpayment
dror
eanoia
Echinocereus
El Fierro, Cerro
electric gas analyser
engine performance map
environmental agent
excimer laser crystallization
fiorenzas
flocculators
gigakatals
grandson
Greenford
hen weekends
hian
humanitarian relief
Lemniot
lifting costs
logomachist
loop back test
low-speed machine
LSI logic function testing
ma user
manhunting
match hook
meganopteron subuchioi
metrocorporis
mild quench
model development and refinement
month-in
mountainboarding
Musculus adductor pollicis
nanoformulation
nap-one-way spread
nicotianas
nonappointed
Norlestrin-21
numerical eccentricity
operands
optical surface
osmium(iv) sulfide
output format rule
periodic speed fluctuation
periodic vibration
phymatosternus babai
plantigrades
posttibia
Primula conspersa
quark
radioulnar inferior joint
rapid control valve closure
recording stylus
relative period
respiratory systems
roller skate
rougy
sapphirine (sapphirite)
scatterations
secondlaw of thermodynamics
Sedum quaternatum
silver ashes
sodium bicarb
Solemn League and Covenant
staymakers
superregenerative amplifier
supersonic tunnel speed
tgr
three-phase circuit
unimporting
unmindfulness
Vernon Center
weak-focusing magnet
what are you like
winch cover
Wouri River
wreck and ruin