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(163) / 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(159) / 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(165) / 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(180) / 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(258) / 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(188) / 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(167) / 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(195) / 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(206) / 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(187) / 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(145) / 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(196) / 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(178) / 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(188) / 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(208) / 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(154) / 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(171) / 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(156) / 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(223) / 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(194) / 评论(0) 分类 Scientific American(五)月
学英语单词
-nerved
Active Risk
alumin(i)um bronze
Aruma
ash pit
aspartyl-
Bakool, Gobolka
ball vein
beesh
biharite
blow money on...
British invasion
centesimal notation
closed circuit television system
colotomy
compression characteristic
conchectomy
Coonawarra
CRDF
crenelated
crystal structure determination
daily bunker
damask violet
defraudful
delages
delayed signal
Dorlisheim
drawback chuck
eiug
engine starting control
EOF
farme
first-stage (sampling) unit
floor buffer
genoproteomic
genus Gerris
graciella
grassland for grazing
Hainsbach
harowitz
Huarmey
ice lolly freezer
inflammatory goiter
infrared tracking axis
ironomyiid
isobutylphenyl propionic acids
kasbas
Kizil
labour cost sheet
Lamoricière
Leonovka
low friction bearing
mabbutt
magnetical stepping motor
megavilt
Mehemett
meningomyocele
metaboracite
microwave integrated crcuits (mic)
monachosorum maximowiczii
nebulium
nitro-carbonic process
nrz modulation
osteoarthritis of spine
photofading
pocketed oil
polygamma-function
preshock
prettied
prodigals
proscriptionist
put ... back
qualltative
randominity
redundancy pay
removable hard disk
riksdaler
rock tar
roller bitt
Rully
season tiles
servantly
slatted elevator
SPA-S-232
stankeivich
synchronized operation
take a scunner against
taped up
tartaric-resistant
terminal very high frequency omnidirectional radio beacon
the rubaiyat of omar khayyam
Tigre, Cerro del
toboggin
Townsend coefficient
transition metals
transplantation of knee joint
tummy-bugs
unmanned tank
Wamac
welsh-mediums
widdiful
wrong reaction