贺氏施肥制

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(195) / 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. On March 18th, we told you that smoking doesnt make people happy. Well, we hear you ask, what will make me happy? What? What? Ok. First relax, then take ou

发表于:2018-12-24 / 阅读(178) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Fingers are pretty nifty. They let you to grab a latte, type on a keyboard, even pull up your pants. But did you ever wonder: where do fingers come from?

发表于:2018-12-24 / 阅读(206) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Nothing says summer like ants. Theyre at your picnics, on your porch, why theres one crawling up your leg right now. Well, now its your chance to turn the

发表于:2018-12-24 / 阅读(281) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. So Im having dinner with my two-year-old son. When he clears his plate, he says to me, Get in the kitchen. I want more. Get in the kitchen, I want more?

发表于:2019-01-08 / 阅读(211) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Every year, scores of manatees are killed by boats in Floridas waters. Their plight is an ecological concern. And everyone from marine biologists to Marg

发表于:2019-01-08 / 阅读(209) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60 Second Science, I'm Karen Hopkin, this'll just take a minute. With gas prices at an all-time high, and expected to climb higher, seems people are keenly aware of what it costs to drive from here to there. But a study

发表于:2019-01-08 / 阅读(211) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science,I am Karen Hopkin.This'll just take a minute. Some people lie through their teeth, some lie about their teeth. Our early human cousins seem to have lied with their teeth. Or they at least misled scienti

发表于:2019-01-08 / 阅读(209) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science, I am Karen Hopkin.This'll just take a minute. Counting is one of the first things we teach our kids. I mean, every parents probably said, You had better be in that bed by the time I count to three. Fol

发表于:2019-01-08 / 阅读(220) / 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. Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources, including fossil fuel production and even

发表于:2019-01-08 / 阅读(185) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. For folks whove engaged in the strange ritual of speed dating, finding that special someone is like winning a romantic game of musical chairs. Now scient

发表于:2019-01-08 / 阅读(200) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. A new study with worms shows that some have a gene that helps them stave off infections. Not through some kind of biochemistrybut by changing their behav

发表于:2019-01-08 / 阅读(205) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. A bird in flight is a thing of beauty. Even their takeoffs and landings usually look effortless. But pterodactyls? Well, thats another story. Scientists

发表于:2019-01-08 / 阅读(196) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. 'Tis the season when many of us go on a seafood diet: we see food and we eat it. But if you want to avoid packing on the pounds, a new study suggests tha

发表于:2019-01-08 / 阅读(233) / 评论(0) 分类 Scientific American(十二)月

This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will just take a minute. Blackjack, slot machines, good ol Texas holdem. People love to gamble. And were not the only ones. A new study shows that pigeons will also pass up a sure

发表于:2019-01-08 / 阅读(207) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science, I am Karen Hopkin. This will just take a minute. July is coming. Its a time to fire up the barbecue, hit the beaches and watch the fireworks. Its definitely not a time to be in the hospital. Because fa

发表于:2019-01-08 / 阅读(207) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute. Its not easy being me; when I was born the doctor told my mother, I did all I could, but he pulled through anyway. Rodney might felt badbut listening to hi

发表于:2019-01-08 / 阅读(275) / 评论(0) 分类 Scientific American(五)月

This is Scientific America's 60-Second Science. I am Karen Hopkin. Thisll just take a minute. Mmm, sticky rice. Its a glutinous side dish thats perfect for practicing your chopstick skills, for sopping up curry sauce and, amazingly, for building real

发表于:2019-01-08 / 阅读(246) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. It's hard to feel a sense of urgency about climate changeit feels so slow. Well, try telling that to the critters dealing with it. Because new data sugge

发表于:2019-01-08 / 阅读(203) / 评论(0) 分类 Scientific American(十二)月

Earth's Fried Far-Future Postponed A study in the Proceedings of the National Academy of Sciences adds at least a billion years to the already far-future estimate of when the sun will make Earth too hot to handle. Karen Hopkin reports. [The followin

发表于:2019-01-30 / 阅读(203) / 评论(0) 分类 60秒科学
学英语单词
accumulated earnings tax
admirer
Anagallis arvensis
anesthesiometer
antiphagocytosis
antitrismus
AntonellodaMessina
application for tonnage due certificate
ashames
assessment of results
biological electronics
biological maturity
brittle meterial structural model experiment
camazepam
CARAM (content addressable random access memory)
causticized black-ash liquor
cdmaOne
chaisson
Charteris
circumpolar water
coarse end
collisional bremsstrahlung
constringent
Cuban monetary unit
dasel
deposit with
devillike
doughan
earth leakage protection
electric lifting platform
enterocardiovirus
everes argiades hellotia
extension teaching methods
fibular lymph node
flame-cutting plant
forked cyme
formosan masked civet
galactopoietic agent
Helbling
helical line type filter
hirudinidaes
humoral endorphin
induction disc relay
insurrector
interline
Ipomoea pes-tigridis
keba
kit-kat club
lankard
local mailbox
long-haul communication
metaloxide
minipalace
molecular heat conductivity
money-no-object
multi-way
multitrack unit
neosilicate
no manual intervention
nonsoap grease
pan for
parasomnia
periodic plankton
periodontal aesthetics
pre-modern
preliminary audit plan
present service index
publicizer
pump rooms
pussywhips
record protection
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ride a tiger
ripple laminae in-drift
Sankt Johann
scanangdevic
Schuster problem
shoin
slack season
solenoid-operated
soy(bean) miso
specific lift
splendid achnatherum
squass
stairmastering
submarine ore carrier
swept layer
Teniaol
Thiannide
Thong Hai Xieng
three-squared
Tuasivi
tubulated
two-dimensional discrete Fourier transform
unacknowledged connectionless-mode transmission
unadvertising
united states naval academies
up-ladder
urea complex
virino
W-ring
water-discharge tube