世界上最小的冰箱

Scientists have developed the world’s tiniest refrigerator – and it’s pretty cold too.科学家已经开发出世界上最小的冰箱-它的漂亮的冷战。 Even smaller than a college dorm fridge, the microchip sized fridge can cool objects down to -459 degrees Fahrenheit.甚至小于一学院宿舍的冰箱，芯片大小的冰箱可以冷静的物体下降到-459华氏度。


The National Institute of Standards and Technology-designed refrigerators, each 25 by 15 micrometers, are sandwiches of a normal metal, an insulator and a superconducting metal.国家标准与技术研究所设计的冰箱，每25 15微米，三明治一个正常金属，绝缘体和超导金属。 When a voltage is applied across the sandwich, the hottest electrons “tunnel” from the normal metal through the insulator to the superconductor.当电压应用于全国夹心，最热门的电子“隧道”从正常金属通过绝缘体向超导体。 The temperature in the normal metal drops dramatically and drains extra heat energy from the objects being cooled.温度在正常的金属急剧下降及排水渠额外的热能从物体被冷却。

I could use few of those now in Kolkata.我可以使用数那些现在在加尔各答。

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