2016年科学美国人

The 2016 Nobel Prize in Physiology or Medicine goes to Yoshinori Ohsumi of Japan for his discoveries of mechanisms of whats known as autophagy. Break the word down and you get auto and phagy: from the Greek for self, auto, and eating, phagein. So, se

发表于:2019-01-17 / 阅读(223) / 评论(0) 分类 2016年Scientific American(十)月

On June 3rd, a train loaded with highly volatile crude oil derailed just outside the small town of Mosier in Oregons Columbia River Valley. More than 40,000 gallons of crude spilled out of the train. Some burned away in a 14-hour long fire at the sce

发表于:2019-01-17 / 阅读(206) / 评论(0) 分类 2016年Scientific American(十)月

Whales, seals and walruses stay warm in chilly water because they have a thick layer of blubber. We humans rely on something like blubberneoprene rubber wet suitsto spend time in cold water. But the thick versions for really icy water are heavy and u

发表于:2019-01-17 / 阅读(190) / 评论(0) 分类 2016年Scientific American(十)月

As in many other fields, gender bias pervades the sciences. Men score higher starting salaries, have more mentoring, and have better odds of being hired. Studies show theyre also perceived as more competent than women in STEM fields. And new research

发表于:2019-01-17 / 阅读(200) / 评论(0) 分类 2016年Scientific American(十)月

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(217) / 评论(0) 分类 2016年Scientific American(十)月

Its called the Great Migrationthe journey of some six million African-Americans from the rural south to northern and western cities between 1910 and 1970. The cultural impact of the Great Migration has been well documented. But researchers have also

发表于:2019-01-17 / 阅读(210) / 评论(0) 分类 2016年Scientific American(十)月

The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Prize in Physics with one half to David J. Thouless and the other half to F. Duncan Haldane and J. Michael Kosterlitz for theoretical discoveries of topological phase transitio

发表于:2019-01-17 / 阅读(207) / 评论(0) 分类 2016年Scientific American(十)月

The Greenland High Arctic is a bare, sparse place. Rather than tall trees, it has tundraground hugging vegetationand rugged, Lord-of-the-Rings-style vistas. Well I don't know, it's not exactly New Zealand, but kind of similar landscape. Mikko Tiusane

发表于:2019-01-17 / 阅读(213) / 评论(0) 分类 2016年Scientific American(十)月

Forget cockroaches. Forget Superman. Forget any other tough-as-nails creatures youve ever heard of. The most indestructible multicellular organisms on Earth are undoubtedly tardigradesmicroscopic eight-legged aquatic invertebrates also known as water

发表于:2019-01-17 / 阅读(234) / 评论(0) 分类 2016年Scientific American(十)月

Babies benefit from breast-feedingthey have a lower risk of infections, vomiting and diarrhea and less of a chance of later developing adult onset diabetes. And now a study finds that being breast-fed helps protect infants who are genetically predisp

发表于:2018-12-24 / 阅读(153) / 评论(0) 分类 2016年Scientific American(十二)月

Advocates for self-driving cars love to tout the benefits the cars would bring, such as fewer accidents and less congestion. Another alleged value of being a passenger rather than a driver is more productivityyou could work rather than concentrate on

发表于:2018-12-24 / 阅读(151) / 评论(0) 分类 2016年Scientific American(十二)月

It's bad enough that mosquitoes suck our blood, and sometimes pass on disease. But there's more. They can actually give you a disease and pee on you at the same time. Adding insult to injury if you will. Jerod Denton, a pharmacologist at Vanderbilt U

发表于:2018-12-24 / 阅读(162) / 评论(0) 分类 2016年Scientific American(十二)月

When you spill a liquid on the ground, it splashes. But if youre a guy using a urinal, or, more important, if the liquid is dangerous, say, an infected blood sample, you want to limit splashing. In other words: If an accident happens, you want the dr

发表于:2018-12-24 / 阅读(140) / 评论(0) 分类 2016年Scientific American(十二)月

Old Yeller was a great smeller. Dogs in general have superior smelling abilities. They detect dead bodies, illegal drugs and explosiveseven cancer. But dogs don't just have great olfactory gear. Another reason they're amazing chemical detectors? [sni

发表于:2018-12-24 / 阅读(150) / 评论(0) 分类 2016年Scientific American(十二)月

Perhaps youve seen the famous TED talk about so-called power poses. It encouraged viewers to change the course of their lives by assuming what are thought of as dominant postures. So you make yourself big, you stretch out, you take up space. You're b

发表于:2018-12-24 / 阅读(141) / 评论(0) 分类 2016年Scientific American(十二)月

As you've probably experienced firsthand, some mosquito species have a real taste for warm, human blood. So much so that if you raise them on it the lab, they'll accept no substitute. Fortunately, I don't get major reactions at all. Brad Main is a mo

发表于:2018-12-24 / 阅读(189) / 评论(0) 分类 2016年Scientific American(九)月

In the 1970s, researchers unearthing an ancient synagogue at Ein Gedi, near the Dead Sea, discovered the structures Holy Arkthe container in which early Jews would have stored the Bible as they prayed. The site was home to a large Jewish community fr

发表于:2018-12-24 / 阅读(178) / 评论(0) 分类 2016年Scientific American(九)月

Today's cars have loads of computer smarts built in. Like the chips that allow you, with the push of a button to unlock your car. And as new cars move down the assembly line, automakers program those functions into the car. They produce one car and t

发表于:2018-12-24 / 阅读(181) / 评论(0) 分类 2016年Scientific American(八)月

Pigeons. Ever since humans established permanent agricultural settlements, weve lived side-by-side with the birdsor, as some people call them, rats with wings. They walk on our sidewalks, roost on our buildings, and eat our leftovers. But soon pigeon

发表于:2018-12-24 / 阅读(132) / 评论(0) 分类 2016年Scientific American(八)月

Black holes got their name because light can't escape them, beyond a certain radiusthe event horizon. But in 1974 Stephen Hawking proposed that quantum effects at the event horizon might cause black holes to benot completely black. Hawking said that

发表于:2018-12-24 / 阅读(150) / 评论(0) 分类 2016年Scientific American(八)月
学英语单词
ADDCON
aix galericulatas
Al Musayfirah
amphicarpaea bracteatas
Aphelenchoidea
auto-racing
bamberger
bearing scraper
beat the air
bi-emarginate
boil-off gas heater
boiler support
breakfast-time
cathode luminous sensitivity
cervi-
colour curve
conical chain
detail logic diagram
diabetes
dustier
dynamical viscosity
eigenstrains
elastoser
Elbow Lake
electrical image
end-point gettering rate
enzymatically
Eternal September
ethylthioether, ethylthioethane
fixators
flocculation system
flock mating (for sheep)
freshwater and marine organisms
Fulayj
glass-coated wire
gnathoneuralgia
grevillea robustas
gromet punch
gyil
Hechi
high-performance engine
hypocalcemic
Icosteidae
image-recording
information management system (ims)
instance in
intracutaneous test
learned profession
learning counseling
leave the past behind
Maachah
macrobicyclic diamine cryptand
marine forecast
master-at-arms
mathematic power
methylyohimbane
molybdenum iodide chloride
monocarps
mountain podzolized soil
multiple terminal access feature
musculus articularis
nation of the aged
nixtamal
non member country
open-loop numerical control system
optic(-axial) angle
oversialylated
palatine spines
Pallavicinia
para-chloromercuribenzoate
passed down
persimmon (diospyros)
phragmosporae
physostigmin
play ... part
policy period
preassignment
protoreceptor
Quarantine Charge
real time extrapolation
reams of
Reclus' disease
rejuvenatation
roadrailer
scalable video coding
squaw
statistical hydrology
stinging lizard
taken leave of their senses
Taybola
the scheme
unintermittingly
upward buckling
vernier measuring tool
voice excited vocoder
war edema
welfare ideal
wet-sand blasting
whole-tone scale
world ocean database (wod)
wyrms
yokel