2018年科学美国人

Brain Scan Might Reveal Appetite for Risk Here's the gamble: Twenty bucks guaranteedor a 50/50 chance of winning sixty bucks?Which would you choose? 赌博游戏规则:20块钱押宝...或50/50赢取60块钱的机会?你会选择哪一个? The answ

发表于:2019-02-14 / 阅读(87) / 评论(0) 分类 2018年科学美国人4月

Next time you find yourself at a karaoke bar, let me suggest a song:Otis Redding's Sitting on the Dock of the Bay. 下次在卡拉OK酒吧时,我给您推荐一首歌吧:Otis Redding坐在海湾的码头上。 The reason? It's got whistling in it

发表于:2019-02-14 / 阅读(60) / 评论(0) 分类 2018年科学美国人4月

Bees Have a Goldilocks Lawn Mow Schedule Add up every golf course, athletic field, industrial park, and yard in the U.S. and you have an area nearly the size of Florida. Upon first glance, all that lawn might seem a biological wastelanda monoculture

发表于:2019-02-14 / 阅读(92) / 评论(0) 分类 2018年科学美国人4月

Neandertal Face Shape Was All Over the Air The jutting midface of Neandertals seems to have evolved to help get large volumes of air into an active body that needed lots of oxygen. Full Transcript Neandertal walks into a bar. Bartender says, Why the

发表于:2019-02-14 / 阅读(65) / 评论(0) 分类 2018年科学美国人4月

Volunteers willing to place riskier bets tended to sport larger amygdalasa region associated with processing fear. Christopher Intagliata reports. Full Transcript Here's the gamble: 20 bucks guaranteedor a 5050 chance of winning 60 bucks? Which would

发表于:2019-02-14 / 阅读(51) / 评论(0) 分类 2018年科学美国人4月

The U.S. Northeast may be more geologically active than was previously thought, according to a seismic sensor network. Full Transcript Hi, Im Scientific American podcast editor Steve Mirsky. And heres a short piece from the April issue of the magazin

发表于:2019-02-14 / 阅读(50) / 评论(0) 分类 2018年科学美国人4月

Some Habitable Zone Exoplanets May Get X-Rayed Out X射线可能照射到一些可居住外行星区域 As astronomers hunt for habitable, Earth-like worlds, one popular place to look is around M stars, a type of red dwarf. Couple reasons for that: 当

发表于:2019-02-14 / 阅读(57) / 评论(0) 分类 2018年科学美国人4月

Lion Conservation Challenges Giraffe Protection The giraffe is an icon of the African savannah. The lion is the top predator of the ecosystem. Both animals face uncertain futures, and both are subjects of intense, ongoing conservation work. Now a stu

发表于:2019-02-13 / 阅读(107) / 评论(0) 分类 2018年科学美国人2月

Homebodies Economize on Energy Use 家庭节能有助于能源利用 The rise in technology, particularly for information and communication, is radically transforming lifestyles. For example, many people can now work from home and still be in almost

发表于:2019-02-13 / 阅读(79) / 评论(0) 分类 2018年科学美国人2月

Woodpeckers Drum to their Own Tune Humans can recognize each other by voice alone. I sound different from other 60-Second Science reporters, for example. In fact, lots of non-human animals, of all types, use voices to distinguish familiar individuals

发表于:2019-02-13 / 阅读(58) / 评论(0) 分类 2018年科学美国人2月

Holiday Cheer Leads to Birth-Rate Spike In the United States, theres a holiday that goes hand in hand with romance. So much so that nine months later, theres a spike in the number of babies born. Valentines day? Wrong! It seems that people in the U.S

发表于:2019-02-13 / 阅读(68) / 评论(0) 分类 2018年科学美国人2月

Killer Whale Culture Revealed By Mimicking Us Killer whales, also called orcas, are like dolphins and belugasthey all have a wide vocal repertoire. But orcas also have uniquedialects among different pods. Which suggests the animals can learn new and

发表于:2019-02-13 / 阅读(77) / 评论(0) 分类 2018年科学美国人2月

Canada Geese Taking a Winter Staycation Over the last few decades, Canada geese have been wintering further and further north, which was interesting, because the winters have gotten a little more mild over the last few years, but still its pretty col

发表于:2019-02-13 / 阅读(59) / 评论(0) 分类 2018年科学美国人2月

Aggressed-Upon Monkeys Take Revenge on Aggressor's Cronies Dont mess with a monkey. Because if you do, hes might take revengeon your family and friends. Thats according to a study of Japanese macaques, which shows that monkeys keep track of eachs oth

发表于:2019-02-13 / 阅读(104) / 评论(0) 分类 2018年科学美国人2月

Poorer Kids May Be Too Respectful at School Kids from different economic backgrounds behave differently in classrooms. For example, working class kids are less likely to ask for help from teachers than are their middle class counterparts. And when th

发表于:2019-02-13 / 阅读(68) / 评论(0) 分类 2018年科学美国人2月

Insects Donate DNA to Unrelated Bugs 昆虫捐献DNA给无关的虫类 You can thank your parents for your DNA. Because humans share genes through sexual reproduction, passing DNA from parent to child. It's known as the 'vertical transfer' of DNA. No

发表于:2019-02-13 / 阅读(65) / 评论(0) 分类 2018年科学美国人2月

Seabird Feathers Reveal Less-Resilient Ocean Today we have sophisticated buoys packed with instruments, and robotic underwater drones. But a more than a century ago the seas were surveyed by different types of autonomous data-gathering instruments. W

发表于:2019-02-13 / 阅读(74) / 评论(0) 分类 2018年科学美国人2月

Wildfires Spike Wine with Smoky Notes The fires that ripped across Napa and Sonoma last year damaged some two dozen wineries, and burned others completely to the ground. 去年发生在纳帕和索马诺的大火损毁了二十多家酒厂,并将其他

发表于:2019-02-13 / 阅读(71) / 评论(0) 分类 2018年科学美国人2月

Baby Whales Pecked to Death by Gulls Gulls. You may have noticed that gulls can be pretty aggressive when it comes to grabbing food. But that behavior is more intense than you may know. Some kelp gulls snack on baby whales. Live baby whales. 海鸥啊

发表于:2019-02-13 / 阅读(81) / 评论(0) 分类 2018年科学美国人2月

Mosquitoes Learn the Smell of Danger When it comes to sucking blood, mosquitos can play favorites: they show preferences for particular species or even certain individuals. At the same time, their tastes can change, depending on the circumstances. On

发表于:2019-02-13 / 阅读(85) / 评论(0) 分类 2018年科学美国人2月
学英语单词
Aire and Calder Navigation
bellipotent
boldface type
bookwright
cargo cubic
CMS-2
co-uned
complaints analysis
controlling officer
cornerite
counterfeminism
Cremanthodium spathulifolium
Curling ulcer
data closet
direct on-line switching
disophenol
drag polar
earwigging
elasticity memory effect
electronic nephelometer
floor pressure arch
galanthophile
gliding nappe
guittar
Hamilton R.
hardware supported vector operation
highbrowness
holcomb
homogeneous displacement gradient
horse flies
hydatina zonata
ideal scale
Impatiens soulieana
in your element
injection function
inkleth
jet transition point
Karachi
ketolic
kitob (kitab)
knot formation theory
large scale injector
leaching nonaquenous
lekker
Melita Bank
midchannel
milliliters
mode of action
modern trend
nano-structures
net cage hoist
non partial
NOR-band
Novangle
o-nitroethylbenzene
optimum system function
parabolic speed
passive resonant circuit
peak-to-peak voltage
phase of crystallization
physiological monitor
pipeline multiplier
positive punk
posterior intestinal portal
praiseworthier
press-button
pressure-demand oxygen system
process theory
pulse peak detector
quadribasic acid
quiners
reactor height
regarding
rewarewas
righi leduc effect
ritualisation
routhe
ruminants
ruptured intervertebral disc
saser
secondary constant
serotina
shared server
silk and cotton fabric
smithii
spindle oil
spitishly
stopped-flow method
sulky disk plough
summerdance
support for
Swormville
Taxillus nigrans
Tectopontine
temses
to rough it
tortex
USD LIBOR
valve adjusting ball stud
warming (process)
zero-coupon
zeum