{"id":4052,"date":"2024-03-19T09:02:26","date_gmt":"2024-03-19T09:02:26","guid":{"rendered":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/03\/19\/50-years-ago-superconductors-were-warming-up\/"},"modified":"2024-03-19T09:02:27","modified_gmt":"2024-03-19T09:02:27","slug":"50-years-ago-superconductors-were-warming-up","status":"publish","type":"post","link":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/03\/19\/50-years-ago-superconductors-were-warming-up\/","title":{"rendered":"50 years ago, superconductors were warming up"},"content":{"rendered":"
\"50<\/div> \r\n
\n\t\t\t
\n\t\t\t\t\n\n\n\n
\n
<\/a><\/figure><\/div>\n\n\n

Superconductors inch upward<\/strong><\/strong> \u2014 Science News<\/em><\/a>, March 16, 1974<\/p>\n\n\n\n

Superconductivity, the property by which certain metals lose all their electrical resistance, would be a grand thing to use technologically were it not for the extreme refrigeration necessary. Every superconductor has a transition temperature above which it becomes an ordinary conductor. Most transition temperatures are near absolute zero. [Scientists] are discovering metals with higher transition temperatures.<\/p>\n\n\n\n

Update<\/h4>\n\n\n\n

Transition temperatures continue to creep upward. In 2018, physicists reported that a compound of lanthanum and hydrogen under extreme pressure showed signs of superconductivity<\/a> up to about \u221220\u00b0 Celsius\u2009\u2014\u2009the highest for any superconductor (SN: 10\/13\/18, p. 6<\/em>). But the squeeze and relative chill makes these materials impractical for widespread use, so the hunt for a material that superconducts at room temperature and closer to atmospheric pressure continues. A debunked 2023 claim<\/a> for such a material has some scientists advocating for new standards for identifying superconductivity (SN: 12\/16\/23 & 12\/30\/23, p. 22<\/em>).<\/p>\n\n\t\t\t<\/div> \n\t\t\t\n