2008年Scientific American's Six

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? We live in a nice neighborhood. Of the galaxy, that is. The sun is about halfway toward the outer edge of the Milky Way. But the sun may have migrated vast distances t

发表于:2018-12-24 / 阅读(176) / 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. Breaking a mirror means seven years bad luck. So does spilling salt or meeting a black cat. Weve all heard such silly-sounding superstitions. Of course w

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 Cynthia Graber. This will just take a minute. Conditions such as mad cow disease are caused by abnormally shaped proteins, called prions. Prions spread by causing other, normal proteins to misfold

发表于:2018-12-24 / 阅读(140) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. this will just take a minute. Weve all heard of the fight to combat malaria in mostly poor, tropical countries. But a whole host of other tropical diseases exist that leave their vi

发表于:2018-12-24 / 阅读(155) / 评论(0) 分类 Scientific American(九)月

This is Scientific American 60-second Science. I am Steve Mirsky. Got a few minutes? Today we have a special edition featuring a brief interview with Scientific Americans Larry Greenemeier. So, Larry, whos..whos the fan of our video right now? Well a

发表于:2018-12-24 / 阅读(191) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science, I am Adam Hinterthuer. Got a minute? Laundry detergents and air fresheners have long promised to keep your house and clothes smelling sunshine fresh and rain shower clean. But what they haven't said is

发表于:2018-12-24 / 阅读(162) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Some people never forget a face. Others never forget a flu. Even if they were infected more than 90 years ago. A team of American scientists studied 32 p

发表于:2018-12-24 / 阅读(194) / 评论(0) 分类 Scientific American(八)月

Darwin's fabled isles, the Galapagos, are in need of a makeover. And removing invasive species of plants tops the to-do list for the islands restoration. But six species that were set to be exterminated have gotten a reprieve. Because a new study fin

发表于:2018-12-24 / 阅读(187) / 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. Electronics come in all shapes and sizesbut theres been a limit on their flexibility. Now, researchers say theyve created electronics that can be shape

发表于:2018-12-24 / 阅读(201) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Its called the broken windows theory and it says that in a neighborhood where buildings have broken windows, people are more likely to engage in bad beha

发表于:2018-12-24 / 阅读(191) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The jury is still out on the relationship between cell phone use and brain tumors. But the American Association of Neurological Surgeons has issued a statement to remi

发表于:2018-12-24 / 阅读(198) / 评论(0) 分类 Scientific American(十一)月

This podcast is brought to you by the American Chemical Society. The global challenges chemistry solutions podcast from ACS discusses how chemistry researchers critical in solving some of the world's most daunting problems, concerning energy, food an

发表于:2018-12-24 / 阅读(156) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans Sixty-Second-Science, Im Karen Hopkin, this will just take a minute. Everybody loves your freeby, especially those samples you get at the doctors office with the latest greatest brand-name cures for your headache, or your

发表于:2018-12-24 / 阅读(166) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The most common natural disaster in the U.S. is flash flooding, which usually hits out of the not clear blue sky. Now researchers are trying to establish an early warn

发表于:2018-12-24 / 阅读(158) / 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. The plague is most famous for killing tens of millions of people all over Europe in the 1300s. Plague is caused by the bacteria Yersinia pestis. And th

发表于:2018-12-24 / 阅读(179) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If youve ever gotten sucked into a bidding war on eBay, you know the feeling. With one minute left in the auction, the bidding is fast and furious as eve

发表于:2018-12-24 / 阅读(165) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest

发表于:2018-12-24 / 阅读(183) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans Sixty Seconds Science. Im Steve Mirsky. Got a minute? Youve no doubt heard that grapefruit juice can greatly increase the effects of some drugs. Even to a dangerous degree. Pharmacologist David Bailey made that discovery

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This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. A trip to the emergency room is usually traumatic. It has to be. Why else would you be going? But new research shows that it also tends to be confusing. S

发表于:2018-12-24 / 阅读(151) / 评论(0) 分类 Scientific American(八)月

This scientific Americans 60-second science, Im Steve Mirsky. Got a minute? One of the drawbacks to attending a sporting event can be the boorish behavior of some fans who have pounded down the brewskies. Now comes a study that finds that three quart

发表于:2018-12-24 / 阅读(162) / 评论(0) 分类 Scientific American(八)月
学英语单词
a sin
a-beaut
air-speed head
amorphization
antislump
arbitrage stock
arteria scapularis dorsalis
ashfields
assume an attitude of
bacaw
banegas
Blackstone River
bored stiff
Boroko
bottle washing machine
bottom loop
Box Hill
carry the torch of
cedramber
chair of state
Chondon
clean-sweep
colour-coordinated
convention
cupula radii
curvature of the metric
dark fence
dead time for pressure regulator
defining factor
deoxyhydroxyphorbol
dowry deaths
Dravinja
dummy input
electronic analysis apparatus
epidesmine (stilbite)
epinephrine tolerance test
excuse me
exercise judgement
expandeth
fax modem
feeding spout
flat drawn
floccilation
fully-automatic switching system
hand feeding mechanism
hard solders
harvest statistics
help screens
heneicosane diacid
houseal
hypolipaemics
in the fields of
index number with fixed base period
intercity mode
intermittent hydrosalpinx
iris melanoma
isaviruses
Jervis I.
jewelry enamel
King's College Hospital
linear factor
made people
managuas
multi router traffic grapher
multi-band antenna
Myriactis humilis
nitroundecane
Petern's method
phosphoric acid-diatomite catalyst
pick up passengers
plasmocyte
polychlorobutadiene
polysymmetric
Poynting effect
pregnenetriol
putus ixodes
quantity galvanometer
relative blackness
remand centre
return to document
rice bacterial leaf streak
rodite
seal someone's lips
seedling machinery
semiclosed-type impeller
Southern Stars
stochastic prediction
Surfacaine
teleflash
Tillaberi
tossels
tractive characteristics
trend percentage
truculent
twincestuous
two-level junction
two-way track
vibra-harp
vinyl fiber
voluntary gift
water trouble
Wurinyanga