视网膜颞侧下小静脉

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(54) / 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(52) / 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(57) / 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
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abmigrating
aeronautic(al) data
All aboard
antecedent money
apparent field
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baltaxe
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character to byte symbol
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diploneis chersonensis
domestic market
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ene reaction
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Euonymus lichiangensis
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expose dose
f spot
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go negative
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Kennedy's sign
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manasses
mind one's own business
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nephew fuckers
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oil discharging by pumping
On the flip side
One's mantle falls on sb.
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out of choice
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presolve
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violet ray
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