TNPSC Thervupettagam

First room-temperature superconductor

October 30 , 2020 1491 days 873 0
  • Scientists have reported the discovery of the first room-temperature superconductor, after more than a century of waiting.
  • The superconductor was formed by squeezing carbon, hydrogen and sulphur between the tips of two diamonds and hitting the material with laser light to induce chemical reactions.
  • At a pressure about 2.6 million times that of Earth’s atmosphere, and temperatures below about 15° C, the electrical resistance vanished.
  • However, the new material’s superconducting superpowers appear only at extremely high pressures, limiting its practical usefulness.
  • Superconductors transmit electricity without resistance, allowing current to flow without any energy loss.
  • When superconductivity was discovered in 1911, it was found only at temperatures close to absolute zero (−273.15° C).

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