2010年Scientific American's Six

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? For some reason, every year a few dozen runners dash from southern Italy all the way to the North Cape of Norway, in what's called the TransEurope-FootRace. It takes abo

发表于:2018-12-24 / 阅读(142) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? The November 26th issue of the journal Science included a study showing that the extinction of the dinosaurs some 65 million years ago allowed puny mammals to get really

发表于:2018-12-24 / 阅读(141) / 评论(0) 分类 Scientific American(十一)月

You're trying to exercise willpowerto avoid eating that second piece of cake or buying an electronic toy you don't really need. Try firming up your muscles. Any muscles. Now you can walk awayas long as walking away is truly in line with your overall

发表于:2018-12-24 / 阅读(144) / 评论(0) 分类 Scientific American(十)月

Pacemakers are expensive. Though some pacemaker manufacturers have dropped the price down to $800 in poorer countries, thats still out of reach for many. One to two million people die each year because they dont have access to this life-saving techno

发表于:2018-12-24 / 阅读(155) / 评论(0) 分类 Scientific American(十)月

If 50 is the new 40 and 60 is the new 50, whats the new 70? Well, it seems safe to at least say that 70 isnt what it used to be. And thats good. Because a new study finds that 70-year-olds did better on intelligence tests than 70 year olds used to do

发表于:2018-12-24 / 阅读(229) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Take a deep breath. Taste anything? Actually, your lungs may, because scientists have discovered that the same receptors that exist on the tongue to tast

发表于:2018-12-24 / 阅读(166) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Those of you following the World Cup know that at this stage there can be no more draws. Ties are broken during overtime play, or in a penalty kick shootou

发表于:2018-12-24 / 阅读(149) / 评论(0) 分类 Scientific American(六)月

On October 9th, we reported that cats born deaf develop enhanced vision. Now researchers find that blind people perceive touch faster than do those with sight. The work is in the Journal of Neuroscience. Volunteers who were sighted or who had varying

发表于:2018-12-24 / 阅读(166) / 评论(0) 分类 Scientific American(十)月

Whether you're a hunt-and-peck typist or a Rachmaninoff of the keyboard, you will make mistakes. But it's not just your eyes catching typos when you see them on the screen. Your hands know when you mess up too. Thats according to a study in the journ

发表于:2018-12-24 / 阅读(182) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-Second Science. Im Adam Hinterthuer. Got a minute? If there's a line in Vegas on the odds of life on another planet, now might be a good time to place a wager. A study in the journal Science examined 166 Sun-sized star

发表于:2018-12-24 / 阅读(172) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? Theres a cool new Web siteand iPhone appthat could come in handy in a wide variety of circumstances. Its called Time Tree. And it tells you how closely related any two org

发表于:2018-12-24 / 阅读(133) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science, Im Christopher Intagliata. Got a minute? Last month's salmonella outbreak got over 1,500 people sick. And one reason salmonella may be such a heavy hitter is that it actually hijacks our immune response

发表于:2018-12-24 / 阅读(167) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Dieters may try to estimate a meals calorie count. Now a study by Northwestern Universitys Alexander Chernev finds that even the order in which food is p

发表于:2018-12-24 / 阅读(147) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60 Science, Im Cynthia Graber. Thisll just take a minute. Batteries add weight, and they need recharging. Thats serious business for implanted medical devices. When the batteries die, patients sometimes have to undergo an

发表于:2018-12-24 / 阅读(163) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science, Im Christopher Intagliata. Got a minute? City living has obviously influenced human cultureas have often been noted, how you gonna keep em down on the farm after theyve seen Paree'? But urban life may h

发表于:2018-12-24 / 阅读(184) / 评论(0) 分类 Scientific American(九)月

A significant cause of disability in older Americans is, simply, falling. If youre a senior citizen and you worry about falling, maybe you should go light on the drinks. It turns out that only two drinkswithin the legal driving limitcan make it more

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will take a minute. For those of you who love a tall tale, the list of genetic variations that determine human height has just experienced a growth spurt. The findings were publish

发表于:2018-12-24 / 阅读(144) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. The racks leading up to the checkout line are prime real estate for impulse buys. Merchandise near the register moves, whether it's a magazine, a pack of

发表于:2018-12-24 / 阅读(139) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Why do some chords sound sweet but others make you wince? Well it appears our earsor at least the ears of 250 Minnesota undergradsprefer chords containing harm

发表于:2018-12-24 / 阅读(196) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Well, did you see the thing about why people on cell phones are so annoying? I know, right? Because you only hear... Oohp, I gotta go. Sorry. I know that

发表于:2018-12-24 / 阅读(177) / 评论(0) 分类 Scientific American(五)月
学英语单词
abercrumbie
affirmative act
Al Mu'allaqah
ankle-boots
arc-proof
astills
baccatin
barrel throttle valve
billboards
boltcutters
burner arch
burst into song
bypass transformer
cdp technique
Cellumeth
cement-sand-molasses process
Charbonnel, Pt.de
chart attirbutes
church-wise
conciliazione
cultural circle
culture-clash
Danish monetary unit
Dilleniaceae
disenvenom
driver cabin
durabolin
emulators
endocarditis chordalis
equivocalities
faringly
first course
folding link
heat insulating cement
hemophthalmia
honores mutant mores
Hubble distance
hydrazine fuel cell
ileums
inverted list file
Kexby
kinins
kipperless
lac insect
lateral attitude
layer of surface detention
logical simulation program
low intensity irradiation
make good
metallized brush
non-return trap
nonbeings
opportunity to earn a living
Oreocharis cavaleriei
phenylpyruvic acid
phor-
photodynamics
program-controlled interrupt
pseudoforests
Ray Robinson
read/write storage
repudiation of contract
request for technology
robinredbreasted
rough drawings
rubber covered
Salix balansaei
saw bucks
shunyata
single fall and skid method
sivin
speech bandwidth compression system
Spinula dendritica
spiritus cardamomi compositus
stablefuls
starch equivalent
stereofunduscope
stevens method
stomachful
stone teeth
store keeper's room
stuffing bytes
stultitia
superclasses
Säkylä
tetrasomaty
Thomas's balsam
time loan unsecured
to sb.'s knowledge
Togolese
tolylhydroxylamine
tool backlash movement
vayl
veena
wasting trust
Watteau blue
Westhope
wobulators
woodwork with metal facings
yazz
ystem
zabaiones