懦夫英文同等学力英语每日一练(2013-12-5)——学苑教育

2021年1月7日发(作者：郎氏)
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同等学力英语每日一练（2013-12-5）
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A new technology is going to ripe, one that could transform our dally lives,
help to form new industries, even unseat world economic powers. Unlike the wave of
industrialization that began in the West and spread later to the rest of the world,
the new developments are taking place in research labs all over the globe—and Asians
are in the forefront. Physicists are grinding out a new class of materials that
display an amazing property unanticipated even two years ago—superconductivity.
Used today only in specialized equipment, super conductors have the potential
to radically alter most of the electrical and electronic appliances found in the
home, making them smaller, more powerful and efficient. They could free our cities
of pollution by replacing petrol and diesel (柴油) vehicles with electric cars, and
cut the cost of electricity. The new materials do something that even the best of
conductors such as copper and silver cannot—they eliminate all electrical
resistance. The implications for energy storage even on the scale of the needs of
an entire city—are immense.
The technology is in its infancy, still accessible to countries that decide
to invest brains and money. For 75 years it had remained little more than a scientific
curiosity with lir0ited practical use. Reason: the phenomenon occurred only at
extremely low temperatures. It was first observed in 1911 by a Dutch scientist named
Heike Kamerlingh Onnes, who cooled mercury to temperatures below -269℃ with liquid
helium (氦). Then in January last year, two IBM scientists, K. Alex Muller and J.
George Bednorz, found a metal oxide ceramic (氧化陶瓷) that super conducted at -243℃.
Their report went largely unnoticed until last December, when it was verified at
a scientific meeting in Boston. Today Japan, India, China and other Asian countries
all have their share of workaholics who spend their days and nights in labs, acting

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