Why are MRI machines so noisy, and what stops us making them quieter?

Permanent magnets play a crucial role in medicine due to its field strength, tunability of field and gradient distributions, as well as practical implementation. In a new study published in KeAi ...

The static magnetic field of an MR system is always on. No sound, sight, or smell alerts personnel to the presence or the extent of the invisible field surrounding the magnet in all directions. The ...

Deep beneath our feet, far below the crust and mantle, Earth is quietly sending out a slow magnetic heartbeat. Every seven ...

Earth’s magnetic field nearly collapsed long ago. What saved it explains why life survived and why the planet remains ...