Scientific American's Sixty

This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will just take a minute. For worse or for better, humans are changing the course of evolution. On February 26, we talked about how fishing practices may be driving the evolution of

发表于:2019-01-08 / 阅读(106) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. I'm Steve Mirsky. Got a minute? Are smarter people drown to music, theater and dance? Or does arts training in childhood change the brain in positive ways? In 2004, the philanthropic Dana Foundation cre

发表于:2019-01-08 / 阅读(117) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I'm Steve Mirskey, Got a minute? Here is another reason to stop global warming to keep the Burmese pythons in Florida. Burmese pythons have been turning up in south Florida in recent years. Perhaps you

发表于:2019-01-08 / 阅读(115) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. I'm Steve Mirsky. Got a minute? Astronomers have discovered a star thats running away from home. The star is speeding away at a blistering 2.6 million kilometers an hour, apparently after being cast out

发表于:2019-01-08 / 阅读(121) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Karen Hopkin, this will just take a minute. Anyone whos ever cut up an onion knows that some smells can actually be painful. Now, researchers from Baltimore and Denver are closer to understanding why

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Steve Mursky. Got a minute? Cameras that catch drivers who blow through red lights are there to improve safety by discouraging light-running. But such cameras actually increase the likelihood of car

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This is Scientific American's 60-Second Science. I'm Steve Mursky. Got a minute? Orbiting around stars far far away is sand. Astronomers have found sandy particles circling a pair of stars about 2,400 light years from us. And they think they might be

发表于:2019-01-08 / 阅读(146) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever been to the everglades or tuned into the animal planet, you know that gators can move through the water oh, so silently barely creating a rip

发表于:2019-01-08 / 阅读(120) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. Im Steve Mirsky. This will just take a minute. Computer status report. After its ongoing Mars missions, NASA will concentrate less on the red planet, and more on the solar system's other planets and moo

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This is Scientific Americans 60-Second Science. I am Karen Hopkin.This will just take a minute. For someone who smokes, there is nothing like that first nicotine rush of the day, but though taking a puff may bring smokers pleasure, it doesnt make the

发表于:2019-01-08 / 阅读(112) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Ants are known for working together, operating as a unit for the good of the colony. But not so fast, say researchers from the Universities of Leeds an

发表于:2019-01-08 / 阅读(145) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science, I am Cynthia Graber, this will just take a minute. The disease hepatitis C might provide a new tool in the fight against HIV AIDS ,say scientists at the Scripps Institute and in the Netherlands.The rese

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This is Scientific Americans 60-Second Science, I am Karen Hopkin. This will just take a minute. Somewhere along the line you've probably heard that you should drink eight glasses of water a day. Its supposed to make your skin supple, keep your organ

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This is Scientific Americans 60-Second Science, I am Cynthia Graber .This will just take a minute. How can we improve engines, inhalers and fire extinguishers? Maybe by copying a beetle. The bombardier beetle's name might scare off predators if they

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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Bacteria are amazingly adaptable. They live in hot springs, in the dead sea and of course inside people where they can dish up some truly nasty diseases.

发表于:2019-01-08 / 阅读(122) / 评论(0) 分类 未知分类

This is Scientific Americans 60-Second Science, I am Cynthia Graber. This will just take a minute. Western Mexico and countries on the west coast of South America had ancient relationships, involving trade in goods and culture. Now MIT students have

发表于:2019-01-08 / 阅读(122) / 评论(0) 分类 未知分类

This is Scientific American's 60-Second Science. I am Karen Hopkin, this'll just take a minute. For years, advocates have touted the use of biofuels as a clean burning alternative to gasoline, now a pair of studies published in the Feb 8 issue of Sci

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 未知分类

That's the sound of clean coal. Well, cleaner coal. A relatively small unit attached to the smokestack at the Mountaineer Power Plant in West Virginia is capturing some 1.5 percent of the carbon dioxide the coal-fired plant would otherwise belch into

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How can you tell the difference between a French baby and a German baby? No, its not that one is wearing a saucy little beret while the other is tucked into tiny pair of lederhosen. Well, maybe thats part of it. But a new study in the journal Current

发表于:2019-01-08 / 阅读(136) / 评论(0) 分类 未知分类

Evolution continues today, and sometimes we can watch it happening. Researchers in the November 6th edition of the journal Science say that they caught in the act a population of butterflies in Ecuador potentially diverging into two distinct species.

发表于:2019-01-08 / 阅读(120) / 评论(0) 分类 未知分类
学英语单词
a-hungry
accumulator registers
albugo tragoponis (pers.)s.f.gray
auxiliary winch
basilar sclerite
Bayesian network
Bjornafjorden
blastoporerest
breadsticks
Bunsen flask
bussi
certificate of attendance
chasing-tool
chlorastrolite
chlorflurenol
chocolate crackles
chromate gelatin
cleaning system
Clorstom
coflowing
contact microradiography
cordon yarn
covert coverage
crossbowmen
crucian carp
culmore
cutting edge rounding
da-da-da-da
dabcyl
dasha
database architecture
decapitalises
despairingly
discharged from prison
diversion strengthened coating material
drop - in center
emmctropia
endocrine dysfunction
engineered swap transaction
eponomy
estri-
ethnologists
fatty droplets
fellow servant
Fenerive
fibrodysplasia ossificans progressiva
forbiddingly
fox caller
gnotophoresis
helical pinch
highway use tax
hydraulic gobbing
insizwaite
interossseous groove
Kanaga Volcano
ludy
machine glazed paper
major study
Mandelbrot engine
marsha
megilp
Nervi clunium mediales
non-rigid connection
Oriental darter
oval and square method
overhang cover
owner of trademark
pentanediol
plant nematode
Poa ochotensis
pomerols
position transfer
prosencephalon
proshare
Report on Compliance
retrusive occlusion
rock climbing
row of piles
RTOW
safety injection process
saponer
Second Lateran Council
sheep cell agglutination test
slag code
snow cloud
spungeous
strip canker
threephase asynchronous motor
thunder-clap
to remedy an abuse
toe button
total task/total reward schemes
unconsolidated sediment
unstarring
veneer knife
veneer stacker
Vibrio pierantonii
vobis
wassily chair
welding deposit
Wenckebach period
Woorong, L.