2008年Scientific American's Six

This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. Next time you are shoveling snow off your walk, don't blame the weatherman, blame bacteria. Because an international team of scientists has found that micr

发表于:2018-12-24 / 阅读(202) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans' 60-Second Science.I'm Karen Hopkin .This will just take a minute. When you hear things like, human DNA differs from chimp DNA by only a couple percent. You cant help but wonder. How can that be? How can so few changes ma

发表于:2018-12-24 / 阅读(144) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans' 60-Second Science. I'm Steve Mersky. Got a minute? Its the kind of thing we can look forward to more in the coming years: Personalized drug regimens based on our individual DNA. The example of this new kind of Personaliz

发表于:2018-12-24 / 阅读(146) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans' 60-Second Science. I am Karen Hopkin, this will just take a minute. Most school kids know that snakes can see with their noses, Vipers in particular have these organs on their noggins that allow them to see heat which he

发表于:2018-12-24 / 阅读(121) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans' 60-Second Science, I'm Chelsea Wald. Got a minute? Remember the good old days when we understood our solar system? Then we found out Pluto wasn't a planet. And now a new study puts comets in question. The data come from

发表于:2018-12-24 / 阅读(126) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60-Second Science, Im Cynthia Graber, this will just take a minute. Our ears are highly attuned to sounds in the world around us. Its not just the frequency of the sound itself. There are also subtle differences and shift

发表于:2018-12-24 / 阅读(126) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans' 60-Second Science. I'm Steve Mersky, got a minute? Pay attention, retailers. For a fatter buttom line, you might wanna have some hunks and hotties on hand. That's what Jennifer Argo and her colleagues say. she teaches bu

发表于:2018-12-24 / 阅读(125) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Every expecting mother gets asked the question: boy or girl? For mammals like us, its an easy call. Two X chromosomes you get pink booties. X and a Y you g

发表于:2018-12-24 / 阅读(254) / 评论(0) 分类 Scientific American(一)月

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. You've probably take you depth perception for granted. It allows you to easily judge distances. Each eye sends a different signal to the brain, and the

发表于:2018-12-24 / 阅读(123) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Tricky cyclists in the Tour de France sometimes cheat by upping their red blood cell count for those tough stretches through the Alps. But researchers at Calif

发表于:2018-12-24 / 阅读(129) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Physicists study all kinds of curious things,from the missing matter in the universe to the strange behavior of electrons ,but none of this is quite as cu

发表于:2018-12-24 / 阅读(128) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I am Karen Hopkin. This'll just take a minute. As you probably know, viruses can jump from animals to people, we've gotten flu from birds and pigs, and HIV, the virus that causes AIDS, is thought to ha

发表于:2018-12-24 / 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? On June 4th we told you about iron snowflakes on Mercury. Today we have some radical news about the atmosphere of Venus. Literally, a radical is a molecule that reacts e

发表于:2018-12-24 / 阅读(134) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science.I'm Karren Hopkin.This'll just take a minute. Location, location, location. We all know it's true of real estate. But it may also apply to the ballot box. Because a team of American researchers has foun

发表于:2018-12-24 / 阅读(165) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. Im Steve Mirskey. Got a minute? That morning coffee is just the thing to get the brain in gear and the body moving. But it turns out that just the aroma of coffee also gets some of our genes up and at

发表于:2018-12-24 / 阅读(130) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I am Christopher Intagliata.Got a minute? Ten years ago, MySpace did not exist,neither did Facebook. Just one site called 6 Degrees.com dominated the online social networking market. But soon, a bunch

发表于:2018-12-24 / 阅读(149) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. For the last five years, researchers have been analyzing bird DNA. That effort has now completely altered our understanding of which bird species really

发表于:2018-12-24 / 阅读(154) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science, I am Steve Mirsky,Got a minute? A team of Finnish and American geneticists has found that that, for some people at least, music is in their genes. In what the researchers called the first study of its

发表于:2018-12-24 / 阅读(99) / 评论(0) 分类 Scientific American(六)月

This is scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? The yeast Candida albicans ekes out a quiet living in our gut. But its a tough life. It faces acids and enzymes, and the immune system always bullies invaders.

发表于:2018-12-24 / 阅读(160) / 评论(0) 分类 Scientific American(五)月

This is Scientific America's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. Its hot to research life in extreme environments. There are organisms that thrive in boiling hot thermal vents and in toxic stews. These extremophiles, as

发表于:2018-12-24 / 阅读(133) / 评论(0) 分类 Scientific American(五)月
学英语单词
accelerating slit
archosaur
artificial potential
ascomas
banker's acceptance credit
Benahist
Beverst
blind ocellus
bulk plant
calwell
cascade type (washer)
casmurro
Change of Insurance Contract
Charollais, Mts.du
clutch sequence
cocknel
company property
cutleries
darwitz
democratic process
disruptive instability
drying oven on forced convection
electric generating unit
epitaxial lateral overgrowth (elo)
equiprobabilism
eye-rings
flood
flush-riveted covering
forwarn
free burning arc
galvanized iron rope
Gentiana andrewsii
goand
graded aggregate base
Griggsville
guarantees of official sterling balance
helpmates
hop-field
impressio colica
inapplication
interlimb angle
internal stack
isolating integral
jet-age
John F.Kennedy City
Krietzschwitz
mahlum
malskre
mesio-lingual cusp
mesosperm
moskal
musty odor
navel-timbers
non-ageing
North Woods
not go-side
nuclei n. acustici
numerical aspects
Oaksterdam
optoacoustic spectrometer
pacificator
plate-straightening rolls
point representation
polysomatic(lauglet 1927)
practical standard cost
Protocol Control Information
purgatoric
purple pea
quasi-algebraic
residual magma
rhythmic spasm of pharyngopalatine muscle
running before the seas
rush'd
samisdat, samizdat
screen mapping
scribbly gum
seal sth in
semicrista
series of curve
sesam-seed oil
sheep-doggoing
slowed down
Smith-Purcell effect
soda process
squamulose
Stefanovo
stilted vault
stop fixer
supertree
suramen
surface of density discontinuity
synthetic corundum
tarka se kop
tie score
tilt motor
undercured concrete
understand something in its proper latitude
vaccenic
vastus intermedius muscle
vernita
Wedensky
whuffled