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(248) / 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(177) / 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(179) / 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(154) / 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(155) / 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(158) / 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(156) / 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(284) / 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(149) / 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(162) / 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(166) / 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(187) / 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(169) / 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(195) / 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(159) / 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(180) / 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(183) / 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(131) / 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(195) / 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(177) / 评论(0) 分类 Scientific American(五)月
学英语单词
address size
all indentations
Allepuz
anodal closure clonus
Arctotis venusta
ascriptive
baycarb
bheu-
bororo
bouquetiere
brand decisions
broncobuster
Buruanga
business line
Byakar Dzong
calcium aluminate hydrate
centering spigot
chrome molybdenum
Cisplatin-Faulding
column of rolando
column socle
combined variance
comparison matrix
compose-edit processer
connection of circuits
cosmic background explorer (cobe)
counterfeits
cream white
critical codfficient
deal ID
dental suture needle
diet-drug
direct flame sterilization
drawing file
Ephratah
ethyl selenomercaptan
Falkenhagen
fallings off
former student
free vibration test
Gandrup
glenmuirs
gliomatous neuroepithelioma
golf-coursest
haglike
haplostemonous stamen
humerus varus
hyperosmolar comas
initial recovery action
intestinal scissors
Khanyangda, Mys
lapse-rates
Leonotis
lochan
malum primarium
MEBD
Megadermatidae
mixture of lower alcohols
modum
new year picture
on a large scale
open surface
pahangs
palaeopolyploid
Palosein
phase relation
phosphoruss
plaster on expanded metal lath
post office department
rate of rise of restriking voltage (rrrv)
reenchantment
sandboxed
scyphidia
semiquantitative mineral determination
short mare
slack limedrowned lime
slayeth
Sorbus reducta
square-cut
St-Marc-des-Carrières
sulfonyldiacetic acid
Swensky
synchro-clock
syndrome of dampness-heat in upper jiao
tapelines
teacher-student relation
the best and brightest
Thermidorian Reaction
total expense
trimis
two seater aeroplane
ultrasonic beacon
unified dispatching management
variable speed ram
vocoding
volt-dc
way-off
wfb
Whitemouth
wilgus
Will never fly
wirily