2010年Scientific American's Six

We like to think that medical equipment implanted in our bodies undergoes rigorous testing before its put inside a person. Thats not always the case, at least for cardiovascular devices. Thats according to an article in the Journal of the American Me

发表于:2019-01-08 / 阅读(190) / 评论(0) 分类 Scientific American(一)月

No surprise: machines and humans have differing opinions about art. Researchers from the Max Planck Institute and the University of Girona had computers and non-art expert humans place each of 275 paintings into one of 11 artistic periods, for exampl

发表于:2019-01-08 / 阅读(173) / 评论(0) 分类 Scientific American(一)月

Sometimes it pays to look like a pile of poop. At least if youre a tasty caterpillar trying to avoid getting eaten by hungry birds. Because a study in the journal Science shows that even young chicks tend to overlook caterpillars disguised as dung. A

发表于:2019-01-08 / 阅读(184) / 评论(0) 分类 Scientific American(一)月

Stereotypes are usually the last thing to change in the face of contradictory evidence. A case in point is the long held belief that boys are better at mathematics than girls. Well a meta-analysis to be published in the journal Psychological Bulletin

发表于:2019-01-08 / 阅读(193) / 评论(0) 分类 Scientific American(一)月

It's hard to mistake that sound. Now imagine hearing it during a night that can last for months and where temperatures drop as low as 37 degrees Celsius. Enough to give nightmares to musk ox and Arctic hares, the favorite prey of the long-legged whit

发表于:2019-01-08 / 阅读(198) / 评论(0) 分类 Scientific American(一)月

When people suffer from a migraine, they often retire to a cave-like dark room. But exactly why does bright light hurt the migraine sufferer? A possible answer was published this week in the online issue of journal Nature Neuroscience. A big clue was

发表于:2019-01-08 / 阅读(176) / 评论(0) 分类 Scientific American(一)月

If youve ever had a garden or grown flowers in a window box, youve probably heard that you shouldnt water your plants at high noon because their leaves might scorch. Now a study in a journal called New Phytologist confirms that water droplets can foc

发表于:2019-01-08 / 阅读(237) / 评论(0) 分类 Scientific American(一)月

The author David Allen is considered to be one of world's top consultants when it comes to personal productivity. He's perhaps best known for his self-help time management book-Getting Things Done: The Art of Stress-Free Productivity that has for yea

发表于:2019-01-08 / 阅读(189) / 评论(0) 分类 Scientific American(一)月

What do a whale and a frog have in common? According to a study published in the Proceedings of the Royal Society, pound for pound, they sound the same. Sounds fishy? I mean, if you've ever heard the eerie song of the humpback whale [whale song], you

发表于:2019-01-08 / 阅读(236) / 评论(0) 分类 Scientific American(一)月

Bees bread and butter is flowerstheres no reason they should be able to recognize human faces. But they can. Back in 2005, Arian Dyer at Monash University showed that bees could identify people who they associated who with sugary snacks. But could th

发表于:2019-01-08 / 阅读(186) / 评论(0) 分类 Scientific American(二)月

(Gunshot.) Shhhh, just lie still, son, dont try to talk. I know what youre wondering. You come into town with the fastest draw in the West and I let you draw first and still youre still the one lying here a bullet in ya. Well, if only youd studied so

发表于:2019-01-08 / 阅读(185) / 评论(0) 分类 Scientific American(二)月

When your kids misbehave, maybe you tell them to stop acting like chimps. Well, that would be an insult to the familiar common chimp, Pan troglodytes, which actually grows up pretty fast. Now bonobos, the other chimp species, or Pan paniscus, enjoy h

发表于:2019-01-08 / 阅读(181) / 评论(0) 分类 Scientific American(二)月

Imagine a world where sunlight can be captured to produce electricity anywhere, on any surface. The makers of thin-film flexible solar cells imagine that world too. But a big problem has been the amount of silicon needed to harvest a little sunshine.

发表于:2019-01-08 / 阅读(206) / 评论(0) 分类 Scientific American(二)月

Its good to keep on your toes. Metaphorically, that is. Not when youre actually out for a stroll. Because a new study suggests that it takes nearly twice as much energy to walk on your toes than it does to land on your heel. Humans are among a small

发表于:2019-01-08 / 阅读(195) / 评论(0) 分类 Scientific American(二)月

Snowpocalypse. Snowmageddon. Whatever your preferred appellation, this week's winter storms brought misery to denizens of the U.S. East Coast and prompted some at least to question the scientific theory of climate change. After all, shouldn't global

发表于:2019-01-08 / 阅读(215) / 评论(0) 分类 Scientific American(二)月

Its called functional magnetic resonance imaging, or FMRI. And some neuroscientists call it the greatest scientific advance of the last 25 years. Because FMRI lets researchers look at the human brain in action. By measuring blood flow, it produces co

发表于:2019-01-08 / 阅读(199) / 评论(0) 分类 Scientific American(二)月

You know what its like. Sit chatting with a friend, and the hours can zip by. But once someone puts you on hold [audio: bad on-hold music] or makes you wait in line, each second feels interminable. But Dan Zakay of Tel Aviv University has some tricks

发表于:2019-01-08 / 阅读(206) / 评论(0) 分类 Scientific American(二)月

At one time or other, someone has probably told you its written all over your face. Thats because your emotions can influence your expressions. Well, a study in the journal Psychological Science suggests that the reverse is also true: that the look o

发表于:2019-01-08 / 阅读(183) / 评论(0) 分类 Scientific American(二)月

As we look forward to Sundays Super Bowl Game, we might still think back on the shocking mistakes made during the playoffs, especially so, if your team was the one that made some of the critical errors. Consider the last play of the NFC championship

发表于:2019-01-08 / 阅读(188) / 评论(0) 分类 Scientific American(二)月

Some people of Italian ancestry, like me, might have a surprise in the family treea man of east Asian descent, who was living and working 2,000 years ago in the boondocks near the heel of the Italian boot. The discovery is the first good evidence of

发表于:2019-01-08 / 阅读(198) / 评论(0) 分类 Scientific American(二)月
学英语单词
abdurahim
achylous
adenomatous sinusitis
aldobiouronic acid
anti-histone antibody
banana bond
bolted rigid frog
brake-operating lever
bridging party line
brynin
caliming
Carex tangii
causalism
central tube frame
cerebro-oculo-facial-skeletal
characterizer
color demodulator
conspire against sth
contagious abortion
ctus
cutaneous cystostomy
dastards
disseveration
doing a thing negligently
drawnwork
earth interior
egromancy
elastic finish
electro-gas (enclosed) welding
enologies
eosite
epitocia
estuarine invertebrate
finite elastoplasticity
fling the handkerchief to
forced recirculation boiling reactor
fruit white rot of grape
gallardoes
gauze frame
general annualreport
genizah
gll. ceruminos?
have the shakes
helixin
humidifying tower
hummeller
include set
independent composition
inventory obsolescence
isorank
Kalantonin
kangaroolike
kingdom animalias
koopmans
Königsau
large meshed net
low-odours
Luikov number
megachallenge
middle term
mind the helm
modular manifolding systems
monogynists
monolithic computer
musculus geniohyoideus infer.
mysteri
nanocarrier
natural bituminized sandstone
nevus cerebelliformis
Nānder
obeyest
pipe support
Pozdeyevka
pressing factor
priming oil
pummelingly
puntee
push-and-go
red mite
reedpipe
relaying current transformer
resistive flowmeter
round ligament (hip joint)
scanning conversion switch
seismocardiogram
sleet layer
space charge cloud
tectonic uplift
tegmentums
tetrahydrofurfuryl benzoate
thallous hydrofluoride
transvalued
trihalo-acetyl derivative
tropidoneis longa
unspirit
vbh
weir washer
wheat eels
wild flower
wilderness programs
with the help of
Yuquan