2010年Scientific American's Six

The earths tropics teem with species. Theyre far more biologically diverse than the cooler parts of the planet. And scientists have credited higher temperatures and greater amounts of sunlight. But a new study claims that the secret to tropical biodi

发表于:2018-12-24 / 阅读(150) / 评论(0) 分类 Scientific American(七)月

Imagine if before you took each step, your guts lurched up into your throat. Well, caterpillars dont have to imaginethey take such drastic steps every day. Researchers were interested in how fluids move around inside a caterpillar. So they put one on

发表于:2018-12-24 / 阅读(138) / 评论(0) 分类 Scientific American(七)月

Heres what scientists think happened, oh, about a hundred million years ago. There was this three-star system. The three linked stars were strolling through the galaxy but got too close to the giant black hole at the center. The hole swallowed one of

发表于:2018-12-24 / 阅读(142) / 评论(0) 分类 Scientific American(七)月

Youd think an animal that hops would know how to land. But for a kind of frog, thats not the case. Imagine trying to catch a frog. You reach and they jump, only to land gracefully on their feet a few feet away. It was thought that all frogs moved thi

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 Scientific American(七)月

Have you ever bought a new electronic device, or tried a new activity, and then dropped it because you were sure you couldnt possibly master it? Well, dont give up so quickly. Researchers performed six experiments that involved subjects trying out ne

发表于:2018-12-24 / 阅读(135) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will take just a minute. Spend any time in a bar, and sooner or later youll hear, Ill have what shes having. It sounds like a bad pickup line, but there may be an actual biological

发表于:2018-12-24 / 阅读(178) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will take just a minute. Whats in a neck? Well, its a good place to hang a pendant or a tie. Or to rest your head. Now scientists say that by separating our heads from our bodies,

发表于:2018-12-24 / 阅读(125) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will just take a minute. Some people pay big bucks for a designer handbag or a luxury carand the distinctive logo that goes along with them. Now scientists have learned that other

发表于:2018-12-24 / 阅读(147) / 评论(0) 分类 Scientific American(七)月

You know saving the rainforest is good for biodiversity. But it may also be a boon to human health. That's because less clear-cutting may mean less malaria, according to a paper out this week in the journal Emerging Infectious Diseases. Researchers l

发表于:2018-12-24 / 阅读(150) / 评论(0) 分类 Scientific American(六)月

Have you been having some trouble getting some digits lately when you ask a girl out? Maybe you should check what music is playing. Thats what French psychologists found. They published their research in the journal Psychology of Music. First the res

发表于:2018-12-24 / 阅读(182) / 评论(0) 分类 Scientific American(六)月

Each of us harbors a unique collection of bacteria, on our outsides and our insides. Now, scientists are finding that the bacteria you get at birth may depend on how you got here. Because babies born vaginally have a different set of microbes than th

发表于:2018-12-24 / 阅读(188) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Crohns disease is a real pain in the gut. This inflammatory disorder can lead to some serious intestinal difficulties. And heredity is partly to blame: som

发表于:2018-12-24 / 阅读(167) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science. Im Christopher Intagliata. Got a minute? The North American and Pacific plates meet in California at the San Andreas fault. The plates grind past each other there at as much as an inch-and-a-half a ye

发表于:2018-12-24 / 阅读(158) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This will just take a minute. Even if you have a light hand with the salt shaker, you probably get lots of sodium in processed or restaurant meals. But sodium can contribute to high

发表于:2018-12-24 / 阅读(184) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Its a plotline worthy of an action filmgalaxies, violently torn apart, smashing into one another, leaving remnants of themselves behind billions of years

发表于:2018-12-24 / 阅读(161) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science. I'm Cynthia Graber.This will just take a minute. Imagine giant fields filled with photovoltaic solar panels, soaking up rays. The best spots to put such panels are obviously sunny, with little rain. But

发表于:2018-12-24 / 阅读(129) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. You've seen it on TV. Crime scene investigators show up at what might be a murder scene. There are blood spattersbut no body. Who's the victim? Now, a

发表于:2018-12-24 / 阅读(147) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. The elderly suffer from an alarming epidemic. A third of people over 65 fall at least once a year. Half of those fall more frequently. Exercise can help,

发表于:2018-12-24 / 阅读(153) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? As we approach the Thanksgiving holiday, one major question looms large for millions of large Americans: Are my fat pants fat enough? Thanksgiving marks the start of the h

发表于:2018-12-24 / 阅读(159) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-Second Science.I'm Cynthia Graber.This will just take a minute. Back in April, 2009, this podcast covered research finding that a simple writing exercise helped minority students improve their grades. Now, a new study

发表于:2018-12-24 / 阅读(154) / 评论(0) 分类 Scientific American(十一)月
学英语单词
a doorstop
A pox on yon !
Ammobium alatum
ayandele
bouillon spoon
centring cam
Chrysosplenium uniflorum
clarifying filter
Cohocton
compel
counterdrawing
curvographs
cybernated society
danshenxinkun
daragon
delay in delivery
derivatizing reaction vial
desolatingly
direct admission
draining of pipeline
Driewegen
electro-pupillography
emergency boration
Esbach's tests
extra contour
farmless
foil carrying pliers
football-field
glomangiomas
gravekeepers
hemosensitin
horse-sickness
hound shark
huminitic
ignition magneto
it's not over until the fat lady sings
junk sail
keep-alive discharge
kunle
lagarangian correlation
link arm
Lébiri
macul-
magnetic locator
manufacturers rep
maximum compression axis
merit system
metal lustre
Molyneux balance wheel
moreand
Myeik Kyunzu
non-judicial matters
nonprincipal ultrafilter
norgestrel
O.B.E.
o.s.s
objects
ocean station
oleic acid
Ossipee
owner-ship
pack screen
paprika
phytolaccanine
pickwell
plate basket
play heck with
preserve from
press polish
pressed bale
pressure suppression
proparoxytones
pucture
quantity not sufficient
raise a new issue
retirement community
robalos
rogett
sanity-check
satin twill
screenability
sd disk
self sharpening share
Shutargardan P.
sound survey meter
story grate
swerve from
telecentric beam
tetralonioidella himalayana formosana
time reference systems
tractus pinealis
twin-sized
unconstraints
unit drill
vicaries
vice-presidential
water proof plug
water service system
white washing
whoopee cushion
winch capacity
Zanthoxylum liboense