2016年科学美国人

The antimicrobial triclosan is a common ingredient in hand soap. But it's also found in shampoos, deodorants, toothpaste, even lip gloss. So it's not too surprising that triclosan also shows up in blood, urine, breast milk and mucus. But here's the w

发表于:2019-02-14 / 阅读(255) / 评论(0) 分类 2016年Scientific American(八)月

Most people dont like to think about death, much less plan for it. Many Americans have thus failed to officially record their wishes should they be faced with catastrophic circumstances that, for example, would require them to be placed on a ventilat

发表于:2019-02-14 / 阅读(200) / 评论(0) 分类 2016年Scientific American(八)月

For thousands of years, whats called the Silk Road was a group of land and sea trade routes that connected the Far East with South Asia, Africa, the Middle East and southern Europe. Of course, when humans travel they carry their pathogens with them.

发表于:2019-02-14 / 阅读(196) / 评论(0) 分类 2016年Scientific American(八)月

Are you afraid of sharks? What about snakes or spiders? Put those fears aside: because in the U.S. youre far more likely to be killed or injured by a deer bounding across the road. Bambi and his kind cause more 200 humans deaths each year, plus some

发表于:2019-02-14 / 阅读(221) / 评论(0) 分类 2016年Scientific American(八)月

There was a recent study that did a survey of parents and coaches asking them what they thought about Tommy John surgery. 有了最近的一项研究做了一个调查的父母和教练询问了他们的想法汤米约翰手术。 Dr. Stan Conte, vic

发表于:2019-02-14 / 阅读(177) / 评论(0) 分类 2016年Scientific American(八)月

New news is goo newswhen its inside our bones, anyway. Because a combination of imaging techniques and modeling has revealed that our bones are filled with a natural chemical goo thats key to the bones function as support structures. The finding is i

发表于:2019-02-14 / 阅读(181) / 评论(0) 分类 2016年Scientific American(八)月

Flu vaccination is proving itself among Connecticuts tots. 接种流感疫苗证明自己在康涅狄格州的小孩。 In 2010 a state law went into effect that requires toddlers aged 6 months to 59 months to get flu shots if they attend child care.

发表于:2019-02-14 / 阅读(243) / 评论(0) 分类 2016年Scientific American(八)月

Parents, its time to get the TV out of your kids bedroom. 父母,是时候要离开你的孩子的卧室电视。 About 60 percent of all teenagers bedrooms in the U.S. include a TV set. Now research suggests that the mere presence of that TV in th

发表于:2019-02-14 / 阅读(476) / 评论(0) 分类 2016年Scientific American(八)月

Sometimes a snout full of snot can be just what the doctor ordered. At least if youre a dolphin. Because a new study shows that a little bit of mucus helps these marine mammals generate the rapid-fire stream of clicks they emit and use for echolocati

发表于:2019-02-14 / 阅读(148) / 评论(0) 分类 2016年Scientific American(八)月

Every flu seasonthats now through the springepidemiologists track flu infections as they break out across the country. And they forecast how bad it's going to get: at the national level, regionally, state by state. They even forecast for metro areas,

发表于:2019-01-20 / 阅读(116) / 评论(0) 分类 2016年Scientific American(十二)月

Used to be, teenage kids had to carry around a bag of flour wrapped in a blanket to learn the responsibilities of parenthood. But these days? The same lesson is taught with hi-tech dolls that cry and record every interaction. You know they get grumpy

发表于:2019-01-20 / 阅读(126) / 评论(0) 分类 2016年Scientific American(九)月

Various animals evolved coloration that keeps them hidden. A jaguar's patterns help it slink undetected across the sun-dappled rainforest floor. The mottled pigmentation on the wings of some let them rest on tree bark undisturbed. And then there are

发表于:2019-01-20 / 阅读(138) / 评论(0) 分类 2016年Scientific American(九)月

Over the last year, beekeepers in the U.S. lost nearly half their honeybee hives. And there are a lot of suspected culprits for this so-called beepocalypsefrom parasitic mites, to viruses, to simple land use changes. But a study out earlier this year

发表于:2019-01-20 / 阅读(157) / 评论(0) 分类 2016年Scientific American(八)月

This is a story about the birds and the bees. When the Yao people of Mozambique want to find beehives full of honey they make this noise [brrrr-hm]. That sound attracts the attention of what are appropriately called honeyguide birds. If you ask Yao h

发表于:2019-01-20 / 阅读(166) / 评论(0) 分类 2016年Scientific American(八)月

By human standards, a few vertebrate species have incredible longevity. Some tortoises live for nearly 200 years. Bowhead whales can live even a decade or two longer. But now theres a new champion: the Greenland sharkwhich conservative estimates have

发表于:2019-01-20 / 阅读(158) / 评论(0) 分类 2016年Scientific American(八)月

The Explorers Club in New York Citywhose members have included Neil Armstrong, Teddy Roosevelt, and the first men to reach both the North and South poleshas a reputation for serving exotic entrees, like fried tarantula and goats eyeballs. In 1951 the

发表于:2019-01-20 / 阅读(156) / 评论(0) 分类 2016年Scientific American(八)月

Mars is a planet of outsized splendor. Despite being only half as big and a tenth as heavy as Earth, it bears the solar systems tallest mountain, longest canyon and largest crater. At 22 and 12 kilometers wide, however, its inner moon Phobos and oute

发表于:2019-01-20 / 阅读(147) / 评论(0) 分类 2016年Scientific American(八)月

Watch your tonebecause it turns out it really isnt what you sayit's how you say it. At least when it comes to couples in couples counseling. 注意你的语气,事实证明你说什么不重要,而是在于你怎么说。至少在心理咨询时涉

发表于:2019-01-20 / 阅读(163) / 评论(0) 分类 2016年Scientific American(八)月

Psychologist Saho Takagi, a graduate student at Kyoto University in Japan, strolls into one of Japan's many cat cafes. These establishments allow customers to pay an hourly fee for the chance to cuddle some cats. They're popular in Japan because so m

发表于:2019-01-20 / 阅读(141) / 评论(0) 分类 2016年Scientific American(八)月

Public lands in the U.S. are managed with two goals in mind: protecting biodiversity and providing people with recreational opportunities, a chance to connect with nature. But sometimes those two goals are at oddsespecially if recreation, activities

发表于:2019-01-20 / 阅读(131) / 评论(0) 分类 2016年Scientific American(八)月
学英语单词
AMA-SRF
androgenised
annular lichen planus
antipodal nuclei
applicant for a patent
Artam
aschersonia aleyrodis
ascochyta lappae
baggy pt.
better not
Big Eightmile Island
bin life
brassica rapas
bronzist
brooklyn-based
Carpocapsa pomonella
click here
coarctotomy
commutator stone
conical arbor
connecting block
core barrel emergency support pad
corner in
cross train
deam
designments
discharging
displacement cascade
dolgen
electromerization
eluting order
environry
expanding current
exploitation through land rent
extortion
fair trade agreement
fallout wind plot
front foot corridor
fume fever
game with complete information
genus echinaceas
hard-and-fast rule
higher-order predicate
homoioplastic transportation
Humber Bridge
hurroo
increased vascular permeability
instrumental variable estimator
intake with artificial transverse circulation
irregular interval
isoprazone
Jornada del Muerto
keep a civil tongue
Kehlbach
light band width pattern
linear tree code
magneto striction echo sounder
magnifier achromatic
Makaha'a I.
megacrystalline
microphotogram
middle diagenesis
missing page interruption
mode interference
moon-earth relation
Muirneag
nailbats
Nepenthes mirabilis
numher
numismatologies
observed life table
opposition principle
organismic sensing
periodic acid-Schiff reaction
plastic
potentiations
pour dogs and cats
protostelid
punditic
push-push amplifier
reception of a telegraph
reclude
recorder driver amplifier
secondary investigation
service contract act
show-reels
solid-not-fat
space encoder
spontaneous combustion period
substitute name
sumo
suos
supplemental restraint system
tagatoses
tax inversion
telegeusids
the solution
Theanthropos
tub-gardening
type rod
under-performing
uribe