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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
8-bit clean
abbatical
acknowledging
Aconitum chienningense
aemulans
austinogebia wuhsienweni
average daily locomotive running kilometers
B-LH
back - up battery
biregular mapping
Blechnaceae
bubble oxygenator
Candon Pt.
cead mile failte
circular thick-film resistors
closed armoring
comma bacilluss
compunctuous
consumable stores
control transition matrix
converbs
direct working time
dosimetric
e-ferols
E.-C. mixture
Edenbridge
electrophotographic technique
equivalent uniform load
erector set
Farmerville
Favorites bar
fertigates
finger-fuck
forsythosides
fovea
frustrated total internal reflection
glittering generality
goober-grabber
grooved tongue
ground-based navigation
Głuchołazy
hide one's light under a bushel
HILAC,hilae
hillocked
in glory
inductive capacity
internal fittings of tank
into-mapping
iron-porphyrin
l-glutamic dehydrogenase
last test step
Leclercia
MACROSEMIIDAE
Mao-particle
methoxyambenonium chloride
microprocessor register
misway
nickel iodide
nitrogen base
non ferrous ingot
noordwijk
occupation level
operation expression
pentaerythrite
periauricular
PFFD
photometered
Plumbamginaceae
privileged memory operation
Protodioson
quarantine object
Quebecker
Rehova
reinforced thermosetting resin
relaxed helix
releveled
residuary personal estate
Salix longiflora
Sandouping Group Complex
scheiners
section of articulated train
security mechanism
sell for a fall
shopfabricated
single-blade stroke circular
skeeby
Sohagpur
star-producing radiation
stomachtoxicity
subsurface mark
superconvergent bootstrap
superficial pustular perifolliculitis
survised
sympathetic resonance
telodendrion
titanium-aluminium alloy
tonicifies
toutatis
trimethylgalloylglucose
trpr
unipotential electrostatic lens
upper temperature zone