2009年Scientific American's Six

This is Scientific Americans 60-second Science. Im Karen Hopkin, this will just take a minute. For every action there is a reaction, and for many movements we make, there is an intention. We think about moving, and we move. Now a study published in t

发表于:2019-01-08 / 阅读(148) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. This will just take a minute. Remember the heady days of 2007 before the large economy sized recession? Well, even back then medical problems contributed to over 62 percent of all ban

发表于:2019-01-08 / 阅读(149) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-second Science, I'm Steve Mirsky. Got a minute? Back on January 15th, US Airways Flight 1549 made that amazing water landing in the Hudson after both engines were taken out by Canada geese, which can weigh eight pound

发表于:2019-01-08 / 阅读(151) / 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. Guys, heres another reason to eat your veggies: they might be good for your sperm. Some studies show that male fertility and whats called seminal quali

发表于:2019-01-08 / 阅读(163) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. For folks whove engaged in the strange ritual of speed dating, finding that special someone is like winning a romantic game of musical chairs. Now scient

发表于:2019-01-08 / 阅读(151) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. What do a hummingbird, a moth, and a maple tree have in common? They all use a similar trick to fly. Okay, okay, a maple tree doesnt fly. But its seeds k

发表于:2019-01-08 / 阅读(168) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-second Science. I'm Adam Hinterthuer. Got a minute? When an Iraqi reporter threw his shoe at President Bush, University of Washington neurologists were delighted. But not because of politics. The fling was just real

发表于:2019-01-08 / 阅读(148) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-second Science. I'm Steve Mirsky. Got a minute? Could it be that our understanding of rain was all wet? A new study says that some drops of rain are falling faster than they should be. Which ultimately means that it m

发表于:2019-01-08 / 阅读(176) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. About a billion years from now, some scientists say, the sun will be too bright for comfort, and our formerly hospitable planet will no longer be able to

发表于:2019-01-08 / 阅读(155) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. If you were a bird, how big could you be? Well, an ostrich can weigh 400 poundsbut it cant get off the ground. So what if you want to fly? University of

发表于:2019-01-08 / 阅读(163) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science, I'm Christie Nicholson. Got a minute? During the last ice age our problem was too little carbon. Unlike today where too much carbon is causing global warming. Past glacial ages occurred partly because

发表于:2019-01-08 / 阅读(161) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-second Science. I'm Christie Nicholson. Got a minute? We might think perfect pitch is an innate talent. Well, a study in the American Journal of Human Genetics is providing some evidence for that. Perfect pitch, aka a

发表于:2019-01-08 / 阅读(139) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-second Science, Im Cynthia Graber. This will just take a minute. I still tend to move my fingers almost subconsciously when doing arithmetic. Well, that might be not so strange according to research published in the Ma

发表于:2019-01-08 / 阅读(161) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. If you get a scratch, your skin can heal itself. But if your car gets scratched, it stays scratched. Scientists at the University of Southern Mississip

发表于:2019-01-08 / 阅读(169) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. On March 11th, Interior Secretary Ken Salazar called for a moonshot for energy independence. Hes set up a task force to look into the large-scale product

发表于:2019-01-08 / 阅读(172) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. People get malaria from Anopheles mosquitoes that themselves are infected with a protozoan parasite called Plasmodium. The mosquitoes do have immune sy

发表于:2019-01-08 / 阅读(167) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Seventy percent of all antibiotics in this country go to livestock like pigs and chickens. And concern is growing about drug-resistant bacteria that sp

发表于:2019-01-08 / 阅读(166) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Imagine antibiotics that would never lose their punch. New research focuses on drugs that bacteria simply cant resist. Most antibiotics work by killing p

发表于:2019-01-08 / 阅读(166) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The common method of closing a surgical incision is simply to stitch the patient up. There are some issues, though. Good stitching can be challenging,

发表于:2019-01-08 / 阅读(152) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. We can get viruses from the Internet. But can we catch viruses on our cell phones? A new study in the journal Science says yes, but the spread of such ma

发表于:2019-01-08 / 阅读(132) / 评论(0) 分类 Scientific American(四)月
学英语单词
a high pitch of excitement
anteros
arcus cerebellaris
armour piercing fin stabilized sabot tracer
asphalt blocks
assets reduction account
axonal flow
beef breast
bus number
buy-and-bust operation
Carex laeta
centisome
centrum tendineum perinei
Chaush
Clapeyron-Clausius' equation
common share option scheme
concussion spring
cost-free
covariable
credit for tax on priot transfer
crusaderlike
dambac
De Beers Consolidated Mines Ltd.
dead-light
dentofacial area
desk aid
diacetylated
dielectric insulator
disang r.
duplex simultaneous two-way
ecderon
electrical interchangeability
electronic drafting machine
electronmagnetic stamina
enhabiting
erythropyknosis
estimated annual use
federated university
fishfly
folker
Frackville
fratching
fry-pan
general achievement test
general fund
groombridge
Guarazoca
intrared analyser
Jessner
laser-bounce
leached horizon
line identification request indicator
long-enduring
loose skein
lubos
Lysionotus gracilis
manual tabulation
marble intarsia
master-apprentice
methanol steam reforming
neutralized radio frequency amplifier
non-trade company
notocords
oesophageurysma
overinsuring
page printer formatting aid
paper tape perforator
phase of articulation
pigginess
pile up welding
porous-type strongbase resin
press for something
pressure equalizing pipe
propeller shaft revolution indicator
prothrombokinase
regular spangle
ropy pus
sampling mechanism
Scandinavianize
schwarzman
self opening
sexy mama
shell passer
SMEPP
smokebox front door washer
sparse matrix package
square-feet
stedily
strideth
stroke limiting pin
superficial parotid lymph nodes
throttle balance level
torquigener hypselogeneion
transdiode
transitory consumption
twin shear yield criterion
tzolk'in
underground transformer
videotex alphamosaic system
wing tip slot
work(ing) cattle
worshippeth