MEG is a non-invasive technique that provides detailed information on the brain in almost real time by using superconducting quantum interference device (SQUID) sensors to measure the magnetic fields ...

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or two to tell you about fascinating ideas from their corner of the universe.

Physicists in Europe and the US have developed a new technique for reversing the "core polarization" of the tiny magnetic whirlpools that exist in certain materials. The reversal, which can be ...