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Bring home a bucket of fried chicken and you may find that people have strong feelings about which part of the bird is best. Well, scientists at Washington University in St. Louis say the answer is: the eyes. At least when you compare them to our own

发表于:2018-12-24 / 阅读(42) / 评论(0) 分类 Scientific American(二)月

For many of us, walking in the rain can be a pleasant and even soothing experience. For those of us who wear glasses, though, drops of water on the lenses and obscured vision can have us running for c

发表于:2018-12-31 / 阅读(44) / 评论(0) 分类 有声英文阅读

A couple of studies on perception. First, theres now visual data to back up the idea that everything looks kinda gray when you feel blue. Researchers examined how the retina responds to different black-and-white contrast situations. They did the test

发表于:2019-01-08 / 阅读(52) / 评论(0) 分类 Scientific American(七)月

Eye Test May Reveal Parkinsons Disease Earlier Parkinson's disease is usually discovered too late in patients for effective treatment. But now there's a new eye test that could diagnose the devastating condition much earlier. The degenerative conditi

发表于:2019-01-14 / 阅读(50) / 评论(0) 分类 VOA标准英语2016年(九月)

Like glasses, contact lenses work by bending light rays just the right amount to make the object come into focus on the retina at the back of the eye. Sometimes the eyes natural lens has an imperfection or may not be shaped properly, which can make y

发表于:2019-02-15 / 阅读(56) / 评论(0) 分类 英语时差8,16

At some point in our childhoods it dawns on us how incredibly great it would be to turn invisible. Just imagine all the places you could sneak into! Think of all the things you'd get to see! Well, nobody knows yet how to make a person invisible. But

发表于:2019-03-06 / 阅读(96) / 评论(0) 分类 英语时差8,16
学英语单词
a short cut
action-angle variables
adamses
Adenophora uehatae
aggregate cash inflows
al-qazwini
antithymocyte globulin
Arrecife
articles of merchandise
Batiscan, L.
beacons
benzindole
brachial scar
bufrolin
bump one's bluey
burrknot
business type
Carex liui
cell walls
cerebro-cortical necrosis
cheap Johns
chinese privets
coal-in-oil suspension
collisionless plasma
compensating reactance
computer time
Coswig
cylindrocarpon supersimplex
D-Melibiose
degree program
digit delay
dohyo matsuri
dorsal calcaneonavicular ligament
down-cut
external resource
fashion style
field ditch system
fluoresceinuria
fossil water
foveation
free spectral range
friable slag
general service (gs) pump
half-and-half lap scarf
han't
hellums
helmet cell
improbables
into view
inverse stress
irrotational wind (component)
jayhawker
Jeronymites
koreensis
linearity test
lorey
mampalons
marked-target seeker (mts)
maximal-length shift register sequence
mechanical charger
meletimide
Meta-character
metastrongyluss
mortifer
muawiya
nanomachines
neurospongioblastosis
non feasible
Obes
ocean analytic chemistry
open-air markets
OR circuti
Otekaieke
outside attack
overflow stream
P'yǒngch'ǒn-ri
patternations
photostimulated desorption
pinecone fishes
pitch blacks
policy strategy
presecretory
puttoes
quhar
record header
saged
Saundersfoot
separate earth electrode
spreading range
student achievement
sun-bursts
swamp rose mallow
tas-de-charge
Toluene Number
trading partner
tribond
uniformly-spaced
untrue statement
vermiculite group
voltage pulsating factor
wetability
yoritomo