Dialogue with Chinese Academician Chen Xianhui: How Does Sup…

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Credit: Visual ChinaBEIJING, August 29 (TiPost) – In 1908, Professor Heike Kamerlingh Onnes at Leiden University in the Netherlands first liquefied helium in the laboratory, refreshing the record of artificial low temperature to -269℃ (4.2 Kelvin).In 1991, Onnes measured the electrical conductivity of pure metals (mercury, later tin and lead) at extremely low temperatures, and discovered the famous "superconduc