2009年Scientific American's Six

Almost three centuries after his death, Antonio Stradivari is still a legend for the sound of his instruments, from the rich depths of his cellos [cello sound] to the soaring clarity of his violins [violin sound]. Theories are often put forth that St

发表于:2018-12-24 / 阅读(78) / 评论(0) 分类 Scientific American(十二)月

Its the season for celebrating and many of those celebrations include imbibing alcohol. Which sometimes leaves us the next morning with uncomfortable reminders of our excesses. But does what we drinksay bourbon versus vodkamake a difference? Apparent

发表于:2018-12-02 / 阅读(112) / 评论(0) 分类 Scientific American(十二)月

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(111) / 评论(0) 分类 Scientific American(十二)月

Picture a gamer, someone who spends countless hours immersed in one of those online role-playing alternate realities. And what do you see? Is it a physically fit female closer to 40 than 14? If not, you may need to rethink your assumptions about geek

发表于:2018-12-02 / 阅读(102) / 评论(0) 分类 Scientific American(十二)月

The northeast just had its first big snow of the season. Meanwhile, on Titan, it was foggy. That weather report brought to you by researchers publishing in the journal Astrophysical Journal Letters. The scientists found that Titan, Saturns largest mo

发表于:2018-12-02 / 阅读(101) / 评论(0) 分类 Scientific American(十二)月

Did you ever sit down to take a test and discover that the person next to you mumbles his way through the whole thing. You probably thought, What kind of doofus cant add a few numbers without moving his mouth? Turns out the answer may be: a very clev

发表于:2018-12-02 / 阅读(111) / 评论(0) 分类 Scientific American(十二)月

Could there be a substance that both gives us the munchies and can help combat obesity? There may indeed be, according to research published in the Proceedings of the National Academy of Sciences. The Monell Center in Pennsylvania partnered with Kyus

发表于:2018-12-02 / 阅读(87) / 评论(0) 分类 Scientific American(十二)月

So 2009 was, in part, a year of powerful people behaving badly. We had Kanye West stealing Taylor Swifts moment at the VMA awards, South Carolina governor Mark Sanford disappearing to, ahem, hike the Appalachian trail, and of course David Letterman,

发表于:2018-12-02 / 阅读(158) / 评论(0) 分类 Scientific American(十二)月

Before you pay big money for caviar, check with two New York City high school students. Brenda Tan and Matt Cost worked with DNA barcoding experts at Rockefeller University and other researchers at the American Museum of Natural History to identify h

发表于:2018-12-02 / 阅读(99) / 评论(0) 分类 Scientific American(十二)月
学英语单词
adiabatic saturation pressure
algesias
always safely afloat
anticyclonic inversion
antitheists
aromadendral
arts therapies research committee
as tender as a chicken
bar iron crane
barera
be stuck up
burry blanket
Busachi
cardiopep
carry the torch
cerithium munitum
cesari
Congressional documents
cross toe forward pointing
double print down
dynamic trim
e-teacher
ecostratigraphic unit
edge disjoint cut-set union
El Bozal, Sa.
electropolarized
ellingsen
entrained bed
Eupteleaceae
Evinos Potamos
file preparation
fire salamanders
forelong
frying-pans
gastricsins
gazed
gentoo
glow-discharge lamp
Hedysarum chinense
Hibiscus fragrans
homespunness
hortvet freezing test
Huygens' principle
in-observance
infeodations
jet-sets
little chief hare
local central office
long-tailed tit
lorned
lounging robe
Mecoffaminum
megatons equivalent (mte)
micro-size particles
munication
munion
needle-applicator
Nettilling L.
new-formed
oatmealy
Padisal
part learning
pemphigoid syndrome
planetary thread miller
positive credit
potassium aluminosilicate
Prud'hon, Pierre Paul
radiocarbon age
residual value of land
ride the fence
roapy
roentgenokymograph
RR Lyrae stars
salpausselk? subglacial period
schizomycete
scrap rubber
secondary aliphatic monohydric alcohol
seismicrophone
semiopened
sieve method (mechanical analysis)
signal intelligence report
single front wheel tractor
sir herbert read
spin gearing
spring-loaded overflow valve
square bloom
stability under UV illumination
supervisory boards
surge withstand capability
tasselseeds
temperature measurement
tennising
terminator codon
Tetraodontoidei
thermoelectric energy conversion
threshold of relaxation
Typha domingensis
underlain
vernonia
virtual classroom
water trade
Wesson