60秒科学:Forcing Electrons into Superconducting Line
Forcing Electrons into Superconducting Line
In a study in the journal Nature researchers created a "pseudo gap," in which electrons in superconducting materials line up just before flowing resistance-free. Sonya Buyting reports
Imagine a world with levitating 1 cars, MRIs the size of laptops, and wide scale efficient energy distribution. These might not be pipe dreams if scientists can capitalize on a finding in the journal Nature.
Superconductors carry electricity with no loss to resistance. They are to regular conductors what a laser beam is to a light bulb. The problem is they have to be cooled to at least –100 degrees Celsius 2 to work. Then the electrons spontaneously start moving in one direction and forming pairs. And now, scientists have caught a glimpse of a mysterious phase they call the “pseudo-gap” where the electrons line up just before they form pairs and start superconducting.
Louis Taillefer from the University of Sherbrooke said they used a magnetic field to align 3 the electron flow: “The effect was very big. It was surprisingly big.”
If scientists can take advantage of this effect, room temperature superconductors could be a step closer. “If we do find or if we do arrive at a material that can sustain superconductivity at room temperature we will have a huge technological 4 revolution, similar on a scale to the transistor 5.”
- It will not mean things like levitating objects and reading others minds. 你将开始明白掌握力量的真正意义。 来自互联网
- As the pole rotates the balls spin out levitating higher the faster the system spins. 柱子旋转的时候，这两个球也会转起来，这个系统转得越快，它们飞得越高。 来自互联网
- The temperature tonight will fall to seven degrees Celsius.今晚气温将下降到七摄氏度。
- The maximum temperature in July may be 36 degrees Celsius.七月份最高温度可能达到36摄氏度。
- Align the ruler and the middle of the paper.使尺子与纸张的中部成一条直线。
- There are signs that the prime minister is aligning himself with the liberals.有迹象表明首相正在与自由党人结盟。
- A successful company must keep up with the pace of technological change.一家成功的公司必须得跟上技术变革的步伐。
- Today,the pace of life is increasing with technological advancements.当今， 随着科技进步，生活节奏不断增快。
- This make of transistor radio is small and beautifully designed.这半导体收音机小巧玲珑。
- Every transistor has at least three electrodes.每个晶体管至少有三个电极。