50 years ago, superconductors were warming up
Excerpt from the March 16, 1974 issue of Science News
To create superconductors, physicists use diamond anvils (one shown) to crush materials at high pressures and ultracold temperatures. Researchers are searching for materials that can superconduct at ambient pressure and room temperature.
J. Adam Fenster/University of Rochester
Superconductors inch upward — Science News, March 16, 1974
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.