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This Scientific Americans podcast is sponsored by audible.com, the number-one online resource for best-selling audio books and more. And now audible.com is offering Scientific American listeners a free audio book of your choice. For details go to aud

发表于:2018-12-24 / 阅读(104) / 评论(0) 分类 Scientific American(十二)月

This is a season when becteria sinus infections run rampant, but some people are better able to ward off that malady. And they can be identified by their taste buds, because those of us who can better detect bitter flavors may also be better equipped

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

Humpback whales sing most frequently where and when they breed. But researchers have just discovered that whales can sing complex songs even when diving and foraging, when its neither the time nor the place for mating behaviour. The study is publishe

发表于:2018-12-24 / 阅读(147) / 评论(0) 分类 Scientific American(十二)月

When I say telecommuting, do you picture yourself easing into the workday in a pair of fuzzy slippers? Well, so does your boss. But the reality is, youre both dreaming. Because a new study shows that folks who work at home at least some of the time,

发表于:2018-12-02 / 阅读(148) / 评论(0) 分类 Scientific American(十二)月

The sign to America apart guess is response by audible.com. A little more online resource for access out your books and more, and now audible.com is for sign American listeners free out of your notebook for your choice. For details, go to audible.com

发表于:2018-12-02 / 阅读(172) / 评论(0) 分类 Scientific American(十二)月

Every fall, you need a new flu shot. Thats because todays vaccines train your immune system to recognize specific strains of flu, indentified by two proteins on the viruss coat, / and /. Thats where the H and N come from in H1N1. Problem is those pro

发表于:2018-12-02 / 阅读(200) / 评论(0) 分类 Scientific American(十二)月

Everyfall, you need a new flu shot. Let's consider these vaccines training ourimmune system, the recognize specific strains of flu. Identifying by two protein on the virus coat, hem agglutinin(血细胞凝集素) and neuraminidases(神经氨酸酶).

发表于:2018-12-02 / 阅读(144) / 评论(0) 分类 Scientific American(十二)月

Cases of the flu peak in winter in the U.S., but why? A new study suggests it's not the heat, but huminity. Or lack thereof. Because in temperate regions, the influenza virus fares best when the weather's dry. That's according to work published in th

发表于:2018-12-02 / 阅读(182) / 评论(0) 分类 Scientific American(十二)月

This is scientific American 60 seconds science. I'm hop kin. just take a minute. Thinking of eating out over the holidays, while you might consider bring your own plate, because the new study shows the typical dishwashing procedures used by most rest

发表于:2018-12-02 / 阅读(145) / 评论(0) 分类 Scientific American(十二)月

Archaeologys taking to the air. Researchers spent a month this summer testing a semi-autonomous unmanned aerial vehiclebasically a semi-autonomous dronehigh in the Andes in Peru. The goal: to scan a colonial town from the 1500s that had been built ov

发表于:2018-12-02 / 阅读(171) / 评论(0) 分类 Scientific American(十二)月

When autumn rolls around, the leaf peepers come out in force. Armed with digital cameras, they record the most spectacular displays of fall foliage. Well according to a study in the journal Functional Ecology [Toshie Mizunuma et al., The relationship

发表于:2018-12-02 / 阅读(101) / 评论(0) 分类 Scientific American(十二)月
学英语单词
4-HC
AAMRL
acetylene series
achily
air-bend die
airport lounges
billiard halls
bisindenyl complex
blown my own trumpet
Boss Murphy
British Guiana Time
Catalanisms
Cluster Springs
commerce exchange
confining layer
convergent fan cleavage
core principles
costumbrismo
crossed detection technique
crystal(induced)synovifis(arthritis)
daishikis
Descysteinylyhienamyein
diceyness
diffraction method
digdown
Dowra
ear-bending
employer's liability
entreprenerd
eucalyptus gums
execution character set
foaming persistance
Frohde's reagent
gats
gravity inversion method
hair cystolith
harlequin beetle
Hun Yeang
indandione
intervarietal hybridization
intravascularly
jet propulsion unit
kubelsky
landgravate
leguminous
long-drive
longitudinal profile
macrina
magneto therapy apparatus
management level
mangifera indicas
mid-tap
molongloes
multi access computer
myriapodan
myristyltrimethylsilicane
nicotiana
nodi lymphatici iliaci externi
oikomania
oseco
pale-brown
Paspalum urvillei
pathologicals
peralkalic
pericapsidic
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point of incipient sintering
polyquaterniums
polysyntheses
PostScript font
procedure incarnation
protobiont
Pyridoxol-5-dehydrogenase
rear echelon
relational logic
rindts
rosmarin
scrape up an acquaintance with sb.
second principal component
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significative
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time constant of AGC
time per piece
too-full
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trock
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two movement form
ullage plate
unattachable
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vein of bulb of vestibule bulb
verumontanum
woven glass
yangouma