Research reveals new aspects of superconductivity and correlated phenomena
(PHYSorg.com Physics)

Discovered accidentally over a century ago, the phenomenon of superconductivity inspired a technological revolution. In 1911, while studying the behavior of solid mercury supercooled to 4 K (-269 °C), Dutch physicist Heike Kamerlingh Onnes (1853-1926) observed for the first time that certain materials conduct electricity without resistance or losses at temperatures in the vicinity of absolute zero.