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(单词翻译:双击或拖选)
Superfluid = Super Weird1 Imagine you’re enjoying a nice cool drink on a hot summer day when all of a sudden your cool liquid leaps out of the cup towards the sun, or starts climbing up the sides of the cup and spills over the edge. You might think you’re living an episode of the Twilight2 Zone, and you’d be right–sort of. The everyday liquids we encounter–from our kitchen faucets3, or in our soda4 cans–would never be so odd tempered. But, there are some liquids that are just this strange, although we would never encounter them in our daily lives. These substances, called superfluids, can only be found on Earth in laboratories, where they are meticulously5 manufactured by scientists. They’re aberrant6 in nature because, for one, they are very, very cold–much colder than any naturally occurring thing on the planet. While Antarctica is at its coldest 130 degrees Fahrenheit7, superfluids typically run about 330 degrees colder than that, near absolute zero. For example Helium, which we typically engage in its gaseous8 form. It liquefies at about ten degrees Fahrenheit above absolute zero, and turns superfluid six degrees colder. Held in a cup, it will climb the walls of its chamber9 in a very thin layer up and over the cup’s rim10. Shine a flashlight on a tube partially11 submerged in superfluid helium, and the bizarre stuff flows upward out the tube, like a fountain, towards the light.
点击收听单词发音
1 weird | |
adj.古怪的,离奇的;怪诞的,神秘而可怕的 | |
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2 twilight | |
n.暮光,黄昏;暮年,晚期,衰落时期 | |
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3 faucets | |
n.水龙头( faucet的名词复数 ) | |
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4 soda | |
n.苏打水;汽水 | |
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5 meticulously | |
adv.过细地,异常细致地;无微不至;精心 | |
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6 aberrant | |
adj.畸变的,异常的,脱离常轨的 | |
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7 Fahrenheit | |
n./adj.华氏温度;华氏温度计(的) | |
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8 gaseous | |
adj.气体的,气态的 | |
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9 chamber | |
n.房间,寝室;会议厅;议院;会所 | |
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10 rim | |
n.(圆物的)边,轮缘;边界 | |
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11 partially | |
adv.部分地,从某些方面讲 | |
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