The resistive magnet at the Hefei Institutes of Physical Science. Credit: CHMFL/Handout via Xinhua/Alamy China is now home to the world’s most powerful resistive magnet, which produced a magnetic field that was more than 800,000 times stronger than Earth’s. On 22 September, the magnet, at the Steady High Magnetic Field Facility (SHMFF) at the Chinese […]