In 1911, the Dutch physicist Heike Kamerlingh Onnes cooled a thread of mercury to 4.2 kelvin in a bath of liquid helium and its electrical resistance vanished completely, and a current set circulating in a superconducting loop like that will still be flowing years later, indistinguishable from the day it beganJuly 24, 2026
Kevin Warsh walks into a trap where the Fed can’t cut rates even if it wants to Personal Finance May 24, 2026 Kevin Warsh is becoming Federal Reserve chair at a pivotal moment for the U.S. economy — forcing him to be…
