Physicists have worked out how to measure the magnetic fields generated by single nerves from outside the body and at room temperature.
Another chance to catch the most interesting and important articles from the previous week on MIT Technology Review.
A roundup of the most interesting stories from other sites, collected by the staff at MIT Technology Review.
The best of the rest from the Physics arXiv this week.
Nobody knew how to identify people's emotional states by looking at their brain waves. Then a machine learning algorithm stepped in.