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(245) / 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(277) / 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(200) / 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

发表于:2019-01-08 / 阅读(206) / 评论(0) 分类 Scientific American(四)月

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(220) / 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(219) / 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(233) / 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(188) / 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(200) / 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(218) / 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(216) / 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(177) / 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(193) / 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(204) / 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(171) / 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(155) / 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(226) / 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(194) / 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(157) / 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(188) / 评论(0) 分类 Scientific American(九)月
学英语单词
affront death
amino acid geochronology
anapleural
anastaz
annual (thermal) wave
antenna loading coil
astigmatism against the rule
attempted-murder
autovector
ball knob
barrault
bear up
bidentate bidentatus
bike frame
bipacked
brizzolara
calorized iron
canales nutricius ossis
candle Power
catalogers
compound hyperopic astigmatism
Confederate State Navy
consorteth
Darnley Lord Henry Stewart/Stuart
davit bollards
debut album
Desertines
dog's-tooth violet
dosalic (c.i.p.w.)
equity trading system
ESF (engineered safety features)
event pulse
flabellatus
for-hire transport
formal disoretization error
glycerolization of semen
gumma
halazone
highly viscous sand-laden fluid
hold-down barrel
Humph.
Ibiodral
imabenzil
imprinting gene
inverted Wiedemann effect
keepy uppy
key board perforator
Kwolla
lazing
low-frequency channel
microaerotonometer
multiple-channel recorder
musculo-
natwar
network controlboard
noise reduction factor
non cash assets
nonmicrophonic
not so much sth as sth
okigboes
opened the kimono
pave the way for sth
phylogeographies
polarization stress
potency unit
Primula concholoba
psychic reward
Purān
quantum mechanical operators
rebelata
ridge-runner
rosa roxburghii tratt
Roz
schul
short paste workgoods
simmerman
single-products
single-sheet grab
skinnydip
sky filter
slide vane-type rotary blower
slowwave
smartnumbers
sour fig
source boat
space liability convention
spinneret(te)
stimulate domestic demand
straight-line oscillation
substractions
t-tubules
top level die-filling
tree puller
trim sb.'s jacket
two-colour hologram
unmarried women
Veronica undulata
verrucous skin tuberculosis
Viola dissecta
Weenix
working overtime
Z factor