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(83) / 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(98) / 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

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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(107) / 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(129) / 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(129) / 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

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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(89) / 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

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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(104) / 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

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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(86) / 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(113) / 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(95) / 评论(0) 分类 未知分类
学英语单词
-oidea
abbils
abyssopelagic fishes
acanta
Acuatim
aertexes
alternating-current exciter
angular offset
annuitisation
at ... heels
attack resisting glazing
autointoxications
Bahia de los Cochinos
book back
Bornova
Brevital
bridging amplifier
bubble gum dermatitis
cage-rotor induction motor
callus formation
carry
cobaltosic oxide
codes and regulations
coffee house
crepenynic acid
cuppings
de-coupling
death blow
definite operator
design-of-experiments
digital filtering method
diorchidium taiwanensis
double triode
drum type swath aerator
engrasping
Euler's summation formula
extended bayes decision rule
fertility table
flashpoint
floating-point divide exception
forpine
glutaral
gold guarantee
gurges
in a good humour
international stream
island of Langerhans
isochromene
kabuki (japan)
Karl Augustus Menninger
Kuniyoshi Yasuo
leucosia rhomboidalis
loxocyesis
Madīnat as Salām
mangelins
meadow sweet
medial s
melilite
minitheme
munoz
nitrate respiration
overpublicize
pallet module
Papilla ductus parotidei
peddlings
phased removal of trade barriers
pinetorum
pneumatic concrete vibrator
polimetrics
quartz felsite
quick connect receptacle
ragequitter
real scenario
real-time trading
reuterskiold
round-bow
salling
sea lawyer
Shirime
skeleton service
slope hoist
social resources
someone's true colors
special pasture land drill
squeeze lifter
stuffer warp
sudafeds
tabellion
Taglish
Thorigny
thornhills
torridonians
trans-elimination
transformer load
two-state variable
uleine
unfermented pomace
unloosest
upcomes
vectorgram
waist size
ziggy